vt.& vi.(使)变暗,(使)模糊
Please darken the blue paint with black paint.
请在蓝漆里掺上点黑漆.
The sky began to darken as the storm approached.
暴风雨来临时天空变得黑沉沉的。
Nothing was going to darken his mood today.
今天什么都不会影响到他的心情。