动词
中文翻译：下垂
同义词：
['flop', 'sink', 'sag']
例句：
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1. The car's engine slumped to the ground when it hit a pothole.
汽车在碰到一个坑洼时发动机突然下沉到地上。
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2. The book sank into the bottom of the bag as it was opened.
这本书打开后沉到了袋子底部。
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3. The economy is sagging, and many businesses are struggling to stay afloat.
经济正在下滑，许多企业都在努力维持运营。