aperture

阳光从窗帘的小缝隙中透进来。

Sunlight came in through the small ___aperture in the curtain.

拍照时，我通常把光圈调到最大以获得更多光线。

When taking photos, I usually set the ___aperture to its widest to get more light.

这款相机的大光圈设计让它在弱光环境下表现更好。

The large ___aperture of this camera allows it to perform better in low light conditions.