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

1.
盡自己的一份力, 做出貢獻
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.
每個人都需要盡自己的一份力來幫助清理公園。
•
If we all do our bit, we can finish this project on time.
如果我們都盡自己的一份力,我們就能按時完成這個項目。