requisite

requisite
[ˈrɛkwɪzɪt]
adjective
  1. made necessary by particular circumstances or regulations
    必需的,必要的
    the application will not be processed until the requisite fee is paid.
    必要的费用付讫后,才会受理申请。
noun
  1. a thing that is necessary for the achievement of a specified end
    必需品,必要条件
    she believed privacy to be a requisite for a peaceful life.
    她认为隐私是平静生活的必要条件。
派生
requisitely
adverb
语源
  1. late Middle English: from Latin requisitus 'searched for, deemed necessary', past participle of requirere (see require)
英语宝典
考试词汇表