名词
中文翻译：圆孔
同义词：
['circle', 'hole', 'opening例句：1. The circular aperture in the center of the machine is where the screw turns.（机器中心的圆形开口是螺丝转动的地方。）2. The scientist used a circular aperture to observe the flow of water.（科学家使用圆形开口来观察水流。）']
例句：
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1. The circular aperture in the center of the machine is where the screw turns.
机器中心的圆形开口是螺丝转动的地方。
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2. The scientist used a circular aperture to observe the flow of water.
科学家使用圆形开口来观察水流。
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3.The engineer designed a circular aperture for the new window.
工程师为新窗户设计了一个圆形开口。