铁铬氧化还原液流电池是一种低成本的储能电池，电池结构如图所示，工作原理为Fe3＋

书面表达 （共1题，计15分）
同学们，我们身边有很多助人为乐的同学，他们的事例值得我们学习。请根据下面表格信息给学校英文报写一篇短文，谈谈身边的好人好事，号召大家向他们学习。

Who they are	What they usually do to help others
Liu Na	make our school beautiful (clean …)
Zhang Hua	help other students with their students…
Wu Tong	Help the people in trouble (cheer others up …)
…	…

要求：1. 参考表格信息，可适当发挥；  2. 语句通顺，意思连贯，书写工整。
3. 文中不得出现真实地名和姓名；
4. 词数：90词左右。（开头和结尾已给出，但不计入总词数）
Dear Editor，
In our school, some students are always thinking more of others and are ready to help them. I’m moved deeply. Here is what they usually do.
Liu Na is a very good student.                                          
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
I hope everyone can learn from them and do something for others.