不必

• In writing telegrams, omit superfluous words .
  写电报稿要省去不必要的字。
• You do not have to yell ; i can hear you .
  你不必喊，我听得见。
• There is no need arguing about this matter .
  这件事不必辩论了。
• You are skinny enough without going on a diet !
  你不必节食就已经够瘦的了。
• You may have the book for keeps .
  这本书你拿去好了，不必归还。
• Let us set aside my personal feelings .
  不必顾及我个人的感情。
• Do not sentimentalize when you talk about animals .
  谈论动物不必忧形于色。
• Well, they needn't worry any longer .
  好啦，他们现在可以不必有什么顾虑了。
• You don't have to be blatant about it .
  你不必为这事吵吵嚷嚷。
• Cut out the paragraph unnecessary for the essay ..
  删掉论文中不必要的段落。