required

英 [rɪˈkwaɪəd]

美 [rɪˈkwaɪərd]

v.  需要; 依靠; 依赖; 使做(某事); 使拥有(某物); (尤指根据法规)规定
require的过去分词和过去式

过去分词：required　过去式：required　

BNC.3534 / COCA.4463

柯林斯词典

• VERB 需要;有赖于
  If yourequiresomething or if somethingis required, you need it or it is necessary.
  1. If you require further information, you should consult the registrar...
     如果需要进一步了解信息，请咨询教务主任。
  2. This isn't the kind of crisis that requires us to drop everything else...
     这样的危机并不需要我们抛弃其他的一切。
  3. Some of the materials required for this technique may be difficult to obtain.
     这项技术需要的某些材料可能很难获取。
• VERB 要求;命令;规定
  If a law or rulerequiresyoutodo something, you have to do it.
  1. The rules also require employers to provide safety training...
     这些规定还要求雇主提供安全培训。
  2. At least 35 manufacturers have flouted a law requiring prompt reporting of such malfunctions...
     至少有35名制造商触犯了要求此类故障出现后立即上报的法律。
  3. The law now requires that parents serve on the committees that plan and evaluate school programs...
     现在，法律要求家长在规划和评估学校项目的委员会中任职。
  4. Then he'll know exactly what's required of him.
     到那时他就会确切地知道对他的要求是什么了。
• PHRASE 必读的
  If you say that something isrequired readingfor a particular group of people, you mean that you think it is essential for them to read it because it will give them information which they should have.
  1. ...an important research study that should be required reading for every member of the cabinet.
     每一位内阁成员都应阅读的一份重要研究论文

英英释义

adj

• required by rule
  1. in most schools physical education is compulsory
  2. attendance is mandatory
  3. required reading
  Synonym:compulsorymandatory
• necessary for relief or supply
  1. provided them with all things needful
  Synonym:neededneedfulrequisite

双语例句

• Taking a long view of the project, I began to think in terms of the rehearsal schedules required.
  为了对这个项目作长远打算，我开始根据要求的排练计划考虑问题。
• Each capsule contains between 30 and 100 pellets of morphine sulphate according to the strength of dose required
  根据所需剂量的浓度不同，每颗胶囊里含有30至100个吗啡硫酸盐颗粒。
• We were only able to make a rough estimate of how much fuel would be required
  我们只能对所需燃料作一个粗略的估计。
• Then he'll know exactly what's required of him.
  到那时他就会确切地知道对他的要求是什么了。
• If you want good relationships, you must have the confidence to be self-assertive when required.
  如果想要发展成功的关系，在需要的时候必须有自信拿出主见。
• Water each plant as often as required.
  按要求经常给每一株植物浇水。
• They seem to move the goal posts every time I meet the conditions which are required.
  好像每当我达到规定条件时，他们就改变规则。
• She suffered from anaemia and even required blood transfusions.
  她患有贫血症，甚至需要输血。
• The machine automatically downloads the required information to his or her fax.
  机器能自动将需要的信息下载到传真机上。
• All passengers are required to show [ present] their tickets.
  所有乘客都必须出示车票。