名词
中文翻译：孔
同义词：
['opening', 'hole', 'aperture', 'gap例句：1. The camera has an aperture of 28mm.（这台相机的光圈为28mm。）']
例句：
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1. The camera has an aperture of 28mm.
这台相机的光圈为28mm。
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2.The scientist measured the aperture size of the lens.
科学家测量了镜头的开口大小。
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3. The aperture is very small, making it difficult to see through.
这个开口非常小，很难透过去。