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The system integrates visual, sound, and touch signals, using AI algorithms to scan the surrounding environment. When the wearer approaches obstacles or objects, it sends signals to guide them through movements, object handling, and other visual tasks, thereby enhancing their independence in daily life. For instance, if someone is about to bump into a chair, the system will warn them through voice messages or gentle vibrations (振动), allowing them to avoid danger and handle tasks more easily.

This breakthrough in biomedical engineering was led by Gu Leilei, an associate professor at Shanghai Jiao Tong University, in cooperation with researchers from Fudan University, the Hong Kong University of Science and Technology, East China Normal University, and other partners.

The team innovatively combined advanced AI algorithms with hardware systems. Equipped with a camera for visual data collection, the device processes environmental information through AI, then sends navigation commands via bone-conduction earphones (which don't block outside sounds) and a soft electronic patch on the wrist. When obstacles or targets are identified, the system generates real-time commands like "advance," "turn left," or "grasp" until tasks are completed.

During virtual simulations and real-world tests, the system demonstrated superior performance in experiments involving both humanoid robots and visually impaired participants. Humanoid robots using this technology successfully moved through complicated hospital hallways, avoiding obstacles 98.7% of the time. Meanwhile, blind participants completed difficult object-finding tasks with an 89% success rate. Notably, the system's active learning capability allows continuous performance improvement through user interaction. Clinical evaluations showed a 40% reduction in collision frequency compared to traditional white cane navigation.

This innovation not only redefines assistive technology for the visually impaired but also pioneers new applications for human-machine cooperation in medical rehabilitation and smart city infrastructure. The team has initiated partnerships with disability organizations to conduct large-scale field trials, aiming for regulatory approval and commercialization within two years.

Much of the conversation around our climate crisis highlights the emission of greenhouse gases and their effect on warming and sea-level rise. We hear little about the effect of climate change on oxygen levels, particularly in oceans and lakes. But water without enough oxygen cannot support life. For the three billion people who depend on coastal fisheries for income, declining ocean oxygen levels are damaging.

As scientists focus on climate, we believe that oceanic oxygen levels are the next big victim of global warming. To stop the situation from worsening, we need to expand our attention to include the dangerous state of oceanic oxygen levels — the life-support system of our planet. We need to accelerate (加速) ocean-based climate solutions that boost oxygen. Examples include nature-based solutions such as those discussed at the 2021 United Nations Climate Change Conference (COP26) held in Glasgow.

Enhanced monitoring of oxygen and the establishment of an oxygen-accounting system are a must. Putting oxygen into the climate story motivates us to do the work to understand the deep systemic changes happening in our complex atmospheric and oceanic systems. We celebrated the return of humpback whales in recent years to an increasingly clean New York Harbor and Hudson River. However, dead fish blocked the Hudson in the summer as warmer waters carried less oxygen.

Ecosystem changes connected to physical and chemical system-level data may point the way to new approaches to climate solutions. It includes an enhanced understanding of the life-support system of our planet. Roughly 40 percent of the world's people depend on the ocean for their livelihoods. If we do not save marine life from oxygen starvation, we starve ourselves.

On December 30, Oberman and his co-worker were at Anini Beach when two workers ran up to them and said, "We think someone's getting stuck in the channel!" Oberman quickly got their equipment and as they were making their way down there, he got in touch with a Jet Ski (喷气式划艇) through radio and asked it to assist with the rescue.

When he got there, Oberman found a surfer, a man in his late 30s struggling against the strong current, with an elderly man in his 70s holding on to the back of the surfboard. Apparently, they entered the water against the advisory on the radio. "My co-worker grasped the surfer. Meanwhile, I was helping the older man," Oberman said.

Normally, Oberman would lay the guy on the surfboard, climb up behind, and paddle from there. He tried that technique at first and quickly realized it was not working.

Waves hit against the rocky reef about 27 meters behind them, and the current was pulling them into it. "If I stop paddling, we're definitely going to be in that zone," Oberman recalled. At that moment, he just focused on forward movement and kept thinking that as long as they were not going backward, that was good.

After about five minutes — "even though it felt longer" — Oberman's partner had gotten the surfer safely to shore and started coming back to assist him. After a short time, the Jet Ski finally came to the channel to help.

It was a good rescue. When asked what it feels like to save someone's life, Oberman responded, "I love it! That's why we do it!" But as exciting as it might be to perform a big rescue, he explained that the most important part of his job was to prevent people from getting into trouble in the first place. "A dry lifeguard is a good lifeguard."

National Theatre Of China   Beijing｜Chinese

This great occasion(盛会) will be the National Theatre of China's first visit to the UK. The company's productions show the new face of 21st century Chinese theatre. This production of Shakespeare's Richard III will be directed by the National's Associate Director, Wang Xiaoying.

Date & Time: Saturday 28 April, 2.30 pm & Sunday 29 April, 1.30 pm & 6.30 pm

Marjanishvili Theatre   Tbilisi｜Georgian

One of the most famous theatres in Georgia, the Marjanishvili, founded in 1928, appears regularly at theatre festivals all over the world. This new production of As You Like It is helmed(指导) by the company's Artistic Director Levan Tsuladze.

Date & Time: Friday 18 May, 2.30 pm & Saturday 19 May, 7.30 pm

Deafinitely Theatre   London｜British Sign Language(BSL)

By translating the rich and humourous text of Love's Labour's Lost into the physical language of BSL, Deafinitely Theatre creates a new interpretation of Shakespeare's comedy and aims to build a bridge between deaf and hearing worlds by performing to both groups as one audience.

Date & Time: Tuesday 22 May, 2.30 pm & Wednesday 23 May, 7.30 pm

Habima National Theatre   Tel Aviv｜Hebrew

The Habima is the centre of Hebrew-language theatre worldwide. Founded in Moscow after the 1905 revolution, the company eventually settled in Tel Aviv in the late 1920s. Since 1958, they have been recognized as the national theatre of Israel. This production of Shakespeare's The Merchant of Venice marks their first visit to the UK.

Date & Time: Monday 28 May, 7.30 & Tuesday 29 May, 7.30 pm

1.活动目的；

2.活动内容；

3.活动反响。

注意：

1.词数100左右；

2.可适当增加细节，使行文连贯；

3.标题已给出，不计入总词数。

A Chinese Calligraphy Exhibition

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The ancient tea-horse road, once a vital trade route winding through mountainous regions, (see) countless stories of courage and perseverance over centuries. Caravans consisting of horses and mules carried tea leaves from the south in exchange horses from border areas, linking distant regions and promoting cultural exchange.

(walk) along the remains of the old path today, one can still sense the traces of the busy trade that once existed. Rough stone roads, weathered inns and faded inscriptions on cliffs serve as silent witnesses to the (tire) efforts of ancient merchants and travelers.

Many of them faced severe weather, rugged terrains and unexpected dangers during the journey. Yet they never gave up, (drive) by the hope of a better life and the desire to connect with the world beyond the mountains. Their journeys were not merely trades, but also a process of (explore) the unknown and bridging cultural gaps.

Nowadays, the tea-horse road no longer bears large-scale trade, but its spirit remains. It reminds us that progress and communication require determination and unity. More importantly, it represents the (wise) of humans in living in harmony with nature while pursuing development.

Many historians and travelers visit the site every year, (admire) the scenery and respecting the spirits of those who once traveled here. The road, has become a cultural symbol, teaches us that true value lies not only in material gains but also in the spiritual wealth gained through experience.

This historical heritage is well worth protecting, for it carries the memories of generations and conveys the truth that every tough journey contributes to (we) growth and understanding of the world.

The forest was amazing. Tall trees stood close to each other, forming a huge green sky. Strange insects made soft sounds, and different kinds of plants grew3 on the ground. I was deeply attracted by the peaceful and4 natural beauty.

However, the weather changed suddenly. Dark clouds covered the sky, and a strong wind began to blow. The guide told us to stay close and keep5. He said such weather was common in mountains and we should not6.

On the way back, it rained heavily. The road became wet and slippery. I was very scared and almost fell down several times. The guide7 at me to calm down and told me to step on solid ground. With his help, I8 moving forward slowly.

After a long walk, we finally returned to the safe camp. Everyone was wet but excited. I realized that nature can be gentle but also9 and challenging. I also learned that courage and calmness are more important than fear in10 situations.

This hiking experience was unforgettable. It taught me to11 the power of nature and to keep a wise mind when facing difficulties. It has become a12 memory that encourages me to be braver. I also learned to13 myself instead of giving up when in trouble.

From this tour, I understood that outdoor activities can not only14 our body but also shape our personality. I will cherish this experience and keep the spirit of bravery in my heart15.

Walk down any street, and you will see a common sight: heads bent down, eyes fixed on a glowing screen. Smartphones have become an extension of our hands in the 21st century. There is no doubt that this invention has changed how we communicate and learn. Some researchers and teachers are starting to worry that these devices might actually be weakening our memory and attention span.

One major concern is "digital amnesia." For example, instead of remembering your best friend's phone number or the directions to a restaurant, you simply rely on the phone to do it for you. Because we know the information is saved in our pocket, our brains make less effort to store it.

Furthermore, the constant buzzing and ringing of notifications is a huge distraction. Every time your phone makes a sound, your attention is pulled away from the present moment. Studies show that even having a phone face-down on a desk can lower your cognitive performance because your brain is still thinking about it subconsciously.

However, it would be unfair to call smartphones entirely bad. They connect us with family far away, provide access to endless educational videos, and can help us organize our busy lives. The key is not to throw the phone away, but to learn how to use it as a tool rather than being controlled by it.

The solution might lie in "digital mindfulness." This means setting clear rules for when and where to use your phone. For instance, you might decide to put the phone in another room while doing homework. By being aware of the habit, we can enjoy the benefits of the new era without losing our ability to think deeply.

A. This makes it very hard to focus deeply on a book or a conversation.

B. But is this constant connection always a good thing?

C. They also help us find jobs and make new friends more easily.

D. This term describes the habit of forgetting things because we trust our devices to remember them.

E. In the future, smartphones will likely replace computers completely.

F. They have brought incredible convenience to our daily lives.

G. Another good habit is turning off notifications for social media apps.

Saving the black-footed ferret was not easy. The main problem was the loss of its food source: the prairie dog. Farmers and ranchers often viewed prairie dogs as pests that damaged fields and caused injuries to cattle. As prairie dog towns were destroyed, the ferrets had nothing to eat. To bring the ferrets back, scientists first had to protect the prairie dogs and change people's opinions about them.

Scientists started a special breeding program. They captured the last wild ferrets and brought them into safe, controlled environments to have babies. At the same time, they worked with local communities to create protected areas where both prairie dogs and ferrets could live without being harmed.

Today, thanks to these efforts, there are about 300 black-footed ferrets living in the wild across North America. While this number is still small, it is a huge victory for wildlife protection. The story of the black-footed ferret teaches us that even when a situation looks hopeless, hard work and science can bring a species back from the very edge of extinction.

Unlike traditional bullying, which happens face to face and can be noticed by teachers or other students, cyberbullying happens online and is easy to miss. It can include spreading rumors (谣言), or sending some hurtful messages. This makes it even more important for schools to find ways to stop it, but they don't have a good way to find out about the problems in the first place.

Technology can help with this. A tool called Go Guardian Beacon can watch what students are doing on their computers. It uses a machine learning model to look for signs of cyberbullying, like hurtful messages or threats. If it finds something, it can tell schools, who can then take action.

Another tool, from Lightspeed Systems, checks students' online activities to find concerning behaviors. It uses AI to understand the context and figure out if something is meant to hurt someone. If it finds a problem, a team of safety specialists will even contact the schools directly to let them know.

By using technology, schools can respond faster and more effectively to cyberbullying, keeping students safer and happier.

On July 22^nd — exactly six months into her volunteer work — a sudden storm hit, with thunder crashing nonstop. By nightfall, nearby rivers overflowed, and floodwaters rushed into the village, trapping families in their homes. Sophie was carefully preparing for the students' lessons for the next day in her room when she heard people crying out in fear from outside. She immediately went to the door and saw water rising fast around the houses.

Picking up a boat borrowed from a local fisherman, she waded (蹚水) through waist-high water toward the cries. 9-year-old Amara and her 5-year-old brother Kofi were trapped in the water, holding onto a wooden chair. "Ms. Sophie's boat shook in the water, but she held us close until we reached the dry shelter (庇护所)," Amara later said.

The next day, at the shelter under a tree, Sophie didn't forget her role as a teacher. She devised some simple lessons — she used stones and sticks to teach the students. "Learning gives us hope," she said.

As the end of one year's volunteer work came, it was time for Sophie to go back home. Before she left, the villagers held a simple but sincere farewell party. The memories of the life in the village lasted forever in Sophie's heart.

(1) 活动介绍(目的、主题、时间)；

(2) 拍摄内容(围绕"我爱我家"主题，展现家庭生活)；

(3) 参赛要求(不超过10分钟、原创)；

(4) 其它要求：5月25日前交到Students' Union@163.com

注意：

1. 词数100左右；

2. 可以适当增加细节，以使行文连贯；

3. 邮件开头和结尾已为你写好，不计入总次数。

NOTICE

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Students' Union