required中文什么意思

adj.
〔美国〕必修的(大学课程)。

• as required:    按规定签字样本; 按照规定; 视需要
• is not required to:    没有必要
• is required by:    被需求

例句与用法

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1. To do good work requires time and pains .
   把活干好需要时间和劳力。
2. For(ii)the transient response is required .
   对（ii）则需要求瞬态响应。
3. Pancreatic abscess obviously requires drainage .
   胰腺脓肿显然需要引流。
4. What was most required by citizens ?
   城里的人最需要的是什么东西？
5. My duties require clearer definition .
   我的职责需要更清楚的说明。

英文释义

形容词

1. required by rule; "in most schools physical education is compulsory"; "attendance is mandatory"; "required reading"
   同义词：compulsory, mandatory
2. necessary for relief or supply; "provided them with all things needful"
   同义词：needed, needful, requisite