名词
中文翻译：洞
同义词：
['hole', 'crevice', 'gap', 'pit例句：1. The drop-hole in the wall is big enough for a small dog to fit through.（墙上的洞足够一只小狗通过。）']
例句：
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1. The drop-hole in the wall is big enough for a small dog to fit through.
墙上的洞足够一只小狗通过。
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2. The hole in the roof led to a hidden room beneath it.
屋顶上的洞通向一个隐藏的房间。
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3.The car's engine dropped a large hole in the road.
汽车发动机在路面上挖了一个大洞。