名词
中文翻译：洞穴坍塌
同义词：
['collapse', 'fall in', 'give way', 'cave-in']
例句：
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1. The mountain was cave-in collapsed due to heavy rains.
由于大雨，这座山发生了崩塌。
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2. The road caved in under the weight of snow.
雪的重量使道路塌陷了。
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3. The building caved in on its own during a strong earthquake.
在一次强烈的地震中，建筑物自行坍塌。