blacken

blacken
verb
  1. become or make black or dark, especially as a result of burning, decay, or bruising
    使变黑,熏黑,使变暗
    [noobj.]he set light to the paper, watching the end blacken as it burned.
    他把光集中到纸上,看着纸边被烧焦。
    [with obj.]stone blackened by the soot of ages.
    因烟灰经年累月积累而变黑的石头。
    [as adj. blackened]she smiled at Mary, revealing blackened teeth.
    她朝着玛丽笑,露出发黑的牙齿。
    ■[with obj.]dye or colour (the face or hair) black for camouflage or cosmetic effect
    (伪装或化妆时)把(脸或头发)染黑
    ■[noobj.](of the sky) become dark as night or a storm approaches
    (天空)变暗,阴沉下来
    ■[with obj.](figurative)damage or destroy (someone's reputation) by speaking badly of them
    (喻)诋毁,给(某人)抹黑
    she won't thank you for blackening her husband's name.
    你诋毁她的丈夫,她是不会感谢你的。
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