They pressed on without letup until they got to the top of the hill.
他们一鼓作气爬上山顶.
《现代汉英综合大词典》
He jaws with no letup.
他没完没了地讲.
辞典例句
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.
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It rained without letup.
雨下个不停.
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When will this rain letup?
雨甚麽时候才会停呀?
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