sharpen

• Metalworking , woodworking whetstone , sharpening stone
  铁工木工油石磨刀石
• Absence sharpens love , presence strenghtens it
  分别令爱越深，相处情更浓。
• Generations of urban living sharpened their wits
  世代居住在城市里使他们磨练了才智。
• Her voice sharpened as she became impatient
  她变得不耐烦了,声音也变尖了。
• Cold weather sharpens the pain in my knee
  严寒的气候加剧了我膝盖的疼痛。
• Slash the top of each roll with a sharpen knife
  刷上蛋白液，随好洒上葛缕籽和罂粟籽。
• Absence sharpens love , presence strengthens it
  相聚爱益切，离别情更深。
• Yes , you can sharpen a digital image in software
  是的，你可以用软体来增加影像锐利度。
• What are you sharpening ? asked a man coming up to the waggon
  “给这位小爷子磨佩刀。 ”
• " sharpen the arrows , take up the shields
  11你们要磨尖了箭头，抓住盾牌。