blacken [ˈblækən]

例句:

• You need to grill the tomatoes until the skins blacken.
  你得把番茄烤到皮变黑为止。
  
• They're trying to blacken our name.
  他们企图败坏我们的名声。
  
• Don't blacken my name by spreading rumors.
  不要散播流言,破坏我的名誉.
  
• Jowls sag and under-eyes blacken, to which I would add: cavernous pores in the wake of sleeping in slap.
  来自THETIMES
• They watched the hollows blacken as the shadows pushed the sunlight farther and farther up the side of the mountain.
  来自NEWYORKER