名词
中文翻译：前孔
同义词：
['front opening', 'front port', 'front aperture例句：1. The camera has a front aperture that allows it to focus on the subject.（这台相机有一个前开口，可以聚焦于主体。）']
例句：
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1. The camera has a front aperture that allows it to focus on the subject.
这台相机有一个前开口，可以聚焦于主体。
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2.The spacecraft's front aperture is designed to block out debris during re-entry.
宇宙飞船的前开口设计成在再入时阻挡碎片。
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3.The scientist used a front aperture to observe the movement of the molecules.
科学家使用前开口来观察分子的运动。