名詞 prerequisite:

1. something that is required in advance
   同義詞：requirement

形容詞 prerequisite:

1. required as a prior condition or course of study

1. A degree is prerequisite for employment at this level.
   必須具備大專院校的學(xué)位才能從事這一級(jí)的工作。
2. Careful study of the market is a prerequisite for success.
   仔細(xì)研究市場(chǎng)情況是取得成功的先決條件。
3. Good muscles are one of the prerequisites of physical fitness.
   肌肉發(fā)達(dá)是身體健康的一個(gè)必備條件。
4. A sense of humour is prerequisite to understanding her work.
   要理解她的作品就必須具有幽默感。

pre.req.ui.site

adj.（形容詞）
Required or necessary as a prior condition:
作為先決條件而要求的或必要的：
例句：
Competence is prerequisite to promotion.
能力是升職的先決條件

n.（名詞）
Something that is prerequisite.
先決條件，前提