aperture

1. N-COUNT An aperture is a narrow hole or gap. 孔隙[正式]

Through the aperture he could see daylight. 通過(guò)這個(gè)孔隙他能看到日光。

2. N-COUNT In photography, the aperture of a camera is the size of the hole through which light passes to reach the film. (相機(jī)鏡頭的) 孔徑

Use a small aperture and position the camera carefully. 使用小孔徑并且小心地安放好照相機(jī)。