preclude

preclude
verb
  1. [with obj.]prevent from happening; make impossible
    防止，杜绝
    the secret nature of his work precluded official recognition.
    他工作的机密性质使他不可能获得官方表彰。
    ■(preclude someone from)(of a situation or condition) prevent someone from doing something
    （形势，条件）阻止某人做某事
    his difficulties preclude him from leading a normal life.
    他的困境使他无法过正常人的生活。
派生
preclusion
noun
preclusive
adjective
语源
  1. late 15th cent. (in the sense 'bar (a route or passage)'): from Latin praecludere, from prae 'before' + claudere 'to shut'
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