名词
中文翻译：Unknown
同义词：
['penny-shaped flaw', 'penny-shaped fissure']
例句：
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1. The old house has a penny-shaped crack in the roof.
这所老房子的屋顶有一个 penny-shaped 裂缝。
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2. The car's engine is showing signs of penny-shaped wear.
这辆车的引擎显示出 penny-shaped 磨损的迹象。
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3. The rock face was riddled with penny-shaped cracks.
岩石表面布满了 penny-shaped 裂缝。