constrain

英 [kənˈstreɪn]

美 [kənˈstreɪn]

v.  强迫; 强制; 迫使; 限制; 限定; 约束

过去分词：constrained　现在分词：constraining　第三人称单数：constrains　过去式：constrained　

CET6考研TOEFLIELTSGRETEM8

Collins.1 / BNC.5685 / COCA.7740

牛津词典

verb

• 强迫；强制；迫使
  to force sb to do sth or behave in a particular way
  1. The evidence was so compelling that he felt constrained to accept it.
     证据是那样的令人折服，他觉得不得不接受。
• 限制；限定；约束
  to restrict or limit sb/sth
  1. Research has been constrained by a lack of funds.
     研究工作因经费不足而受限制。
  2. She felt constrained from continuing by the threat of losing her job.
     由于受到失去工作的威胁，她感到很难再坚持下去。

柯林斯词典

• VERB 约束;限制;强迫
  Toconstrainsomeone or something means to limit their development or force them to behave in a particular way.
  1. Women are too often constrained by family commitments and by low expectations...
     女性往往受到家庭责任和低期望值的束缚。
  2. How can we produce top-class engineers when universities are constrained to offer salaries that can only attract mediocre staff?...
     大学的财力有限，提供的薪酬仅能吸引水平一般的教师，在这种情况下，我们如何能培养出一流的工程师？
  3. It's the capacity of those roads which is going to constrain the amount of travel by car that can take place.
     制约驾车出行量的将会是那些道路的通行能力。
• PHRASE 觉得被迫(做某事)
  If youfeel constrained todo something, you feel that you must do it, even though you would prefer not to.
  1. For some reason he felt constrained to lower his voice.
     不知怎么的，他觉得自己必须得压低声音。

英英释义

verb

• restrict
  1. Tighten the rules
  2. stiffen the regulations
  Synonym:stiffentightentighten up
• hold back
  Synonym:restrainencumbercumber

双语例句

• The bound of upper ( lower) directional derivatives for extremal function is given under the M-F constrain criterion.
  在M&F约束准则下给出了极值函数上（下）方向导数的界。
• Women are too often constrained by family commitments and by low expectations
  女性往往受到家庭责任和低期望值的束缚。
• The patterns are designed to help guide the design process, not to constrain it in any way.
  设计这些模式的目的是帮助指导设计过程，而不是以任何方式来限制它。
• Assertions constrain the existence of elements and attributes and their values.
  断言约束元素和属性的存在和它们的值。
• There are other factors, of course, that may constrain the scope of a service.
  当然，这其中还有其他一些因素也限制了服务的范围。
• These achievements tell us: multiple problems that constrain progress can be overcome.
  这些成就告诉我们：制约进展的多方面问题可以被克服。
• This can greatly improve the performance of queries that constrain and select data along one or multiple clustering dimensions.
  这可极大改善从一个或多个集群维数限定并选择数据的那些查询的性能。
• It's the capacity of those roads which is going to constrain the amount of travel by car that can take place.
  制约驾车出行量的将会是那些道路的通行能力。
• The aim is to constrain rather than contain China.
  美国的目的是限制中国，而不是遏制中国。
• Debt levels also constrain the flexibility of fiscal policy and risk a full-scale economic crisis.
  这种债务水平还限制了财政政策的灵活性，并且有可能引发全面经济危机。