假设你是李华，光明中学的学生。寒假期间你参加了社区居委会组织的社区服务活动。

请你按照图片顺序，以“Community Service”为题，向学校英文校刊投稿，介绍这次活动情况。

注意：

1．文章开头已为你写好

2．词数不少于60

3．参考词汇：sports facilities体育设施

Community Service

 During the winter vacation, the students in our class joined in a meaningful activity in which all of us did our bit for the community.

少尿的定义是24小时尿量

A．<100ml

B．<150ml

C．<300ml

D．<400ml

E．<600ml