动词
中文翻译：倒塌
同义词：
['fall', 'collapse', 'overturn例句：1. The old house had a tumbling roof after the storm.（暴风雨过后，这座老房子的屋顶摇摇欲坠。）2. The car tumbled down the hillside.（汽车从山坡上翻滚而下。）']
例句：
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1. The old house had a tumbling roof after the storm.
暴风雨过后，这座老房子的屋顶摇摇欲坠。
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2. The car tumbled down the hillside.
汽车从山坡上翻滚而下。
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3.The old building was a tumbling pile of rubble when it fell.
那座旧建筑在倒塌时变成了一堆瓦砾。