re·quire·ment /-ˈkwaɪrmənt/
 需要,要求,請求,規定,必要條件
 requirement
 需求
 Re·quire·ment n.
 1. The act of requiring; demand; requisition.
 2. That which is required; an imperative or authoritative command; an essential condition; something needed or necessary; a need.
    One of those who believe that they can fill up every requirement contained in the rule of righteousness.   --J. M. Mason.
    God gave her the child, and gave her too an instinctive knowledge of its nature and requirements.   --Hawthorne.
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 requirement
      n 1: required activity; "the requirements of his work affected
           his health"; "there were many demands on his time" [syn:
            demand]
      2: anything indispensable; "food and shelter are necessities of
         life"; "the essentials of the good life"; "allow farmers
         to buy their requirements under favorable conditions"; "a
         place where the requisites of water fuel and fodder can be
         obtained" [syn: necessity, essential, requisite, necessary]
         [ant: inessential]
      3: something that is required in advance; "Latin was a
         prerequisite for admission" [syn: prerequisite]