1.〈美口〉停止,中止;休息
1.a pause or reduction in something unpleasant
1.The sixth day of a U. N. -approved military operation to enforce a "no-fly" zone over the country showed no signs of letup.
联合国批准的在利比亚上空实施禁飞区的军事行动进入第六天，军事行动没有任何减弱的迹象。
2.Our survey detects no letup in the influence of brands on Chinese consumers' buying decisions.
我们的调查也发现，品牌对中国消费者做出购买决定有重要影响。
3.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。
4.remaining in force or being carried on without letup.
持续有效或者没有停止的继续。
5.What we have predicted are multiple and continuous disasters, with no letup.
我们预测的是多重的连续灾难，中间没有停顿。
6.We must develop the advanced productive forces without letup.
我们必须坚持不懈地发展先进的生产力。
7.We should always learn new words and new sentence patterns while keeping practicing without letup.
要源源不断地补充新的词汇、新的句型，并且要坚持不懈地进行练习。
8.When will this rain letup?
雨甚麽时候才会停呀？