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Nanjing City Wall is one of the most important historical and（culture）relics of Ming Dynasty and it is also a symbol of China's ancient architecture. With a present length of about 21 kilometers, the City Wall has a（high）of 14~21 meters and the footing has a width of 14 meters. Nanjing is one of the few cities in Chinastill have old city walls, and its City Wall, for the most part, is better preserved.

Nanjing City Wall is made up of four parts. From the outside there（be）the Outer City, the Inner City, the Imperial City and the Palace City. In 1390, the Outer City was built with a length of 180 kilometers. Though it does not exist any more today, the names of the 18 gates（use）now. Nanjing City Wall we can see today is mainly the relics of the Inner City. The Imperial City was built in order（protect）the Palace City, which is named "Forbidden City" as it iscentre of the four walls.

Nanjing people attach great importance to the work of（preserve）Nanjing City Wall because it symbolizes the history of Nanjing. Although the completeness of Nanjing City Wall can not competethe City Wall of Xi'an, it is still one of the（long）ones in the world.

Later, I4 her job and poured water into the thirsty soil every day. Gradually, I understood her sacred job. Unlike children or pets, house plants5 nothing. They wait quietly, no matter how6 to attention. To undertake the care of a plant during a long period of time requires7 for a living thing. Actually it8 entirely on you for survival, but can't even ask for help.

Even as Alzheimer's disease9 so much of her moment-to-moment memory, the inborn act of caring lasts. After she left the hospital and went back home, sometimes I would guide her down the steps to10 the plants herself. Each time, she smiled up at me with11, because being able to care for something is still what brings her the greatest joy. Whatever she may12 moments later, while she is with them, she is fully13. Her devotion to the plants has no limit and no end.

       I look at plants differently these days. I see them as my mother does: quiet reminders of the need for deep14 and love for every living thing. It is clear to me that the things we spend a lifetime developing are never truly15; the kindness she has planted in me still blooms.

The researchers set out to explore three key correlations (相互关系)：How mobility-the ability to move, affected income, how mobility influenced income overtime, and whether exercise could help people maintain their mobility as they aged. The team analyzed data from Health and Retirement Study(HRS), the largest study tracking changes overtime in Americans aged 50 and above. This study takes into account various life aspects, including work, social status, health, psychology and family matters, as individuals age.

To evaluate the impact of current mobility on income, the researchers examined data from over 19, 000 respondents (调查对象) to determine how well they could perform simple tasks, such as climbing stairs, or moving around a room. Each person received a score, with 5 indicating full mobility and 0 indicating difficulties with these tasks. The researchers found that for each decrease in the mobility category, individuals lost out on an average of $3, 000 in annual income compared to their peers. Those who were active were also significantly more likely to remain working for longer than the other group. It appeared that engaging in exercise enabled individuals to maintain mobility and engage in professional life for a longer period of time than those who were less active.

Looking at earnings overtime revealed even more substantial benefits for those who remained active throughout their lives. Active individuals showed an overall income level that was $6, 500 higher, along with higher rates of employment. For the third part of the study, it's not surprising that those who engaged in exercise continued to maintain their mobility after the age of 55 and had higher employment rates. Even exercising just one day a week showed improvements in mobility outcomes.

While this study doesn't definitively prove that leading a healthy lifestyle directly leads to higher earnings, it strongly suggests that staying healthy and mobile brings benefits beyond just lower levels of disease.

我认为你这样编造关于他的故事是极不友善的。

我家有一个自明朝传下来的花瓶。

与信件相比，电子邮件的效率更高。

出于好奇，她拆开了那封信。