letup
n. 停止；中止；弛缓；松懈
近义词：lull，break，respite，rest，relief，interval，relaxation，remission，
英英释义
Noun
- a pause during which things are calm or activities are diminished;
"there was never a letup in the noise"
例句
用作名词(n.)
- The surgeons have been working for twenty hous without letup.那些外科医师一连工作了二十小时没有停止。