do your bit
US /duː jʊər bɪt/
UK /duː jʊər bɪt/

1.
尽自己的一份力, 做出贡献
to do one's share of a task; to make one's contribution to an effort
:
•
Everyone needs to do their bit to help clean up the park.
每个人都需要尽自己的一份力来帮助清理公园。
•
If we all do our bit, we can finish this project on time.
如果我们都尽自己的一份力,我们就能按时完成这个项目。