let up片語動詞

減弱、減緩、轉小

The rain finally let up after three straight days.

連下三天之後，雨終於小了。

鬆懈、放鬆、歇口氣

She never lets up until the whole project is finished.

整個項目完成之前，她從不鬆懈。

放寬要求、少施壓常用於 let up on

You should let up on him; he's doing his best.

你該對他放寬一點，他已經很努力了。

減弱、停歇、緩和多用於否定句

There has been no letup in the summer heat this week.

這一週的酷熱絲毫沒有緩和。