使变暗的英文：
obumbrate

Pulling down the window shades subdued the light in the room.
拉下窗帘使房间的光线变暗了。

Janet watched the rain clouds darken the sky.
珍妮特看着乌云将天空变暗。

Potatoes darken in color as they are fried and we judge the endpoint of frying by color.
油炸时土豆色泽变暗,所以我们就根据色泽来判断油炸终点。

Reduction in growth rate and vigour. Darkening of the leaves. Decreased drought resistance.
生长速度和活力下降。叶色变暗。抗旱能力下降。

The viewfinder image will darken when the previewAE lock button is pressed.
当按压预景深自动曝光锁定按钮时,取景器相将变暗。