darkens; darkened; darkening
darkens; darkened; darkening
Learner's definition of DARKEN
1
: to make (something) dark or to become dark or darker in color(使)变暗,变黑 [+ object]
[no object]
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The sky darkened and it started to rain.天空变暗了,接着开始下雨。
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Her face darkens to a deep red when she gets angry.她生气时,脸色发紫。
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The wood will darken as it ages.木头颜色会随着年头增长变深。
2
: to make (something) less happy or to become less happy(使)忧郁,生气,不快 [+ object]
[no object]
darken someone's door/doors
: to go to or appear at a place where you are not welcome anymore(不受欢迎的人)登门造访,跨进门槛