crack the whip
US /kræk ðə wɪp/
UK /kræk ðə wɪp/

成语
1.
鞭策, 严加管教
to use your authority to make someone work harder or behave better
示例:
•
The new manager had to crack the whip to get the team to meet the deadline.
新经理不得不鞭策团队以赶上截止日期。
•
If you don't start working harder, I'll have to crack the whip.
如果你不开始更努力地工作,我就不得不鞭策你了。
在 Lingoland 学习这个单词