prerequisite (also pre-condition)

n ~ (for/of sth) thing required as a condition for sth to happen or exist 必备条件; 先决条件; 前提: Careful study of the market is a prerequisite for success. 仔细研究市场情况是取得成功的先决条件. * Good muscles are one of the prerequisites of physical fitness. 肌肉发达是身体健康的一个必备条件.

prep, prep school, preparation, preparation for, preparatory, prepare, prepared, preparedness, prepay, prepayment, preponderance, preponderant, preponderate, preposition, prepositional, prepositional phrase, prepossessing, preposterous, preposterously, prerequisite, prerogative, Pres, presage, Presbyterian, Presbyterianism, presbytery, preschool, prescience, prescient, prescribe, prescribed, prescript, prescription, prescriptive, prescriptively, presence, present, present participle, presentable, presentably,