n't

• Do n't put off today 's work till tomorrow .
  今天能做的不要拖到明天。
• We could n't think where she had gone to .
  我们想不出来她到哪里去了。
• He is n't the man to shy at difficulties .
  他不是在困难面前畏缩的人。
• There is n't a trace of a smile on her face ..
  她脸上没有一丝笑容。
• There is n't a grain of truth in what he said ..
  他说的全不是真话。
• He does n't take such an insult lying down .
  他不能忍受这样的侮辱。
• Do n't trouble to meet me at the station .
  不必麻烦你到车站去接我。
• The package should n't carry written message .
  包裹内不得夹带书信。
• Do n't come unless i ring you up .
  除非我打电话给你，否则你不要来。
• Do n't go along with them in their evil deeds ..
  别跟他们同流合污。