aperture
n. 孔，穴；（照相机，望远镜等的）光圈，孔径；缝隙
复数 apertures
例句
Through the aperture he could see daylight.
通过这个孔隙他能看到日光。
《柯林斯英汉双解大词典》
It did not entirely fill the aperture, and he had been looking over it.
它并没有完全填满洞口，他一直在往外看。
The only light came through a narrow aperture.
仅有的光亮来自一个小孔。
《新英汉大辞典》
