let up
phrasal verb with let verb uk/let/ us/let/ letting | let
informal
(IMPROVE)
改善，好转;停止
If bad weather or an unpleasant situation lets up, it stops or improves.
When the rain lets up we'll go for a walk. 等雨一停我们就出去散步。
(STOP)
停止，终止
to stop doing something that you have been doing continuously or in a determined way
Neil spent the entire evening moaning about his job - he just wouldn't let up. 尼尔一整晚都在抱怨他的工作——说起来没完没了。
The police insist that they are not letting up on their campaign against drugs. 警方坚称不会停止打击毒品犯罪的行动。