blackening ['blækənɪŋ]

例句:

• The married women of Shitamachi maintained the custom of blackening their teeth.
  下町的已婚女性还保留着把牙齿涂黑的习俗。
  
• The solid decomposed rapidly with blackening.
  固体迅速分解并变暗.
  
• Having received a thorough blackening from Miss Pao, he could hardly go on.
  方鸿渐给鲍小姐喷了一身黑, 不好再讲.
  
• When the full moon subsides, the blackening of her fingers does too.
  来自SA
• Signs of the disease are wilting blackening foliage, discoloured tops and resin bleeding.
  来自BBC
• The tone suddenly darkens with River of My Youth, the clear mountain stream blackening.
  来自BBC