名词
中文翻译：不规则孔
同义词：
['uneven hole', 'irregular opening']
例句：
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1.The tree had an irregular hole in its trunk.
这棵树的树干有一个不规则的洞。
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2.The car's engine has a small irregular hole in it.
汽车发动机里有一个小型的不规则洞。
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3. The hole was filled with water after the storm.
暴风雨过后，这个洞被水填满了。