不必要的的英文：
needless
otiose
uncalled-for
unnecessary
unwanted

参考例句：
  • condemned the needless waste of food.
    反对不必要的粮食浪费
  • An expendable budget item;expendable personnel.
    不必要的预算项目;冗员
  • We must learn to dispense with unnecessary luxuries.
    我们应该学会节省一切不必要的奢侈品。
  • The obtrusion of his views was uncalled-for
    他的意见之强迫别人接受实在是不必要的。
  • Sufficient care was had to the safekeeping of the captive without inflicting on him any unnecessary suffering.
    为了防止俘虏逃跑，他们采取了严密的措施，但是也不给他不必要的罪受。
  • A needless bother
    不必要的烦恼
  • Don't involve yourself in unnecessary expense.
    勿做不必要的花费。
  • It is unnecessary to argue with him .
    和他辩论此事是不必要的。
  • Tom went to unnecessary expenses
    汤姆花些不必要的费用。
  • Avoid unnecessary expenses
    避免不必要的开支
needless是什么意思：
adj. 不需要的；不必要的
n. 不需要，不必要
  • Needless to say, I agree.
    无须说，我是同意的。
  • It's needless to say that the experiment will be successful.
    不用说，实验会成功的。
  • Needless to say our house is now surrounded by a jungle.
    不用说，我家现在已被丛林包围。
otiose是什么意思：
a. 不必要的,怠惰的,没有用的,多余的
    uncalled是什么意思：
    a. 未叫到的,未经邀请的
    • Facts proved that their worries were uncalled-for.
      事实证明他们的担心是多余的。
    • To bring trouble to oneself by making uncalled-for moves
      无病自炙
    • The two friends rushed furiously in to complain to Jia Rui of Jin Rong's uncalled-for insult.

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