名词
中文翻译：扩张的洞
同义词：
['dilated cavity', 'dilated hole例句：1. The pit was filled with water after the rain.（雨后，这个坑里填满了水。）']
例句：
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1. The pit was filled with water after the rain.
雨后，这个坑里填满了水。
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2. The scientist discovered a dilated pit in the rock.
科学家在岩石中发现了一处扩张的洞。
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3.The pit was too deep to explore without a rope.
这个洞太深了，没有绳子无法探索。