ascertain

英 [ˌæsəˈteɪn]

美 [ˌæsərˈteɪn]

v.  查明; 弄清

过去分词：ascertained　现在分词：ascertaining　过去式：ascertained　第三人称单数：ascertains　

CET6考研TOEFLIELTSTEM8法律

Collins.1 / BNC.5989 / COCA.9571

牛津词典

verb

• 查明；弄清
  to find out the true or correct information about sth
  1. It can be difficult to ascertain the facts.
     可能难以查明事实真相。
  2. I ascertained that the driver was not badly hurt.
     我已查清，驾驶员伤势不重。
  3. It should be ascertained that the plans comply with the law.
     须要弄清楚，这些计划要合法。
  4. The police are trying to ascertain what really happened.
     警方正设法查清到底发生了什么。
  5. Could you ascertain whether she will be coming to the meeting?
     请你弄清楚她来不来开会好吗？
  6. It must be ascertained if the land is still owned by the government.
     必须确定这块土地是否仍属于政府所有。

柯林斯词典

• VERB （尤指经过努力后）查明，弄清，确定
  If youascertainthe truth about something, you find out what it is, especially by making a deliberate effort to do so.
  1. Through doing this, the teacher will be able to ascertain the extent to which the child understands what he is reading...
     这样一来，老师就能确定孩子们对他所读的内容理解多少了。
  2. Once they had ascertained that he was not a spy, they agreed to release him...
     一旦确认他并非间谍，他们即同意将他释放。
  3. Take time to ascertain what services your bank is providing, and at what cost.
     花些时间确认一下你的银行会提供什么样的服务，费用是多少。

英英释义

verb

• be careful or certain to do something
  1. He verified that the valves were closed
  2. See that the curtains are closed
  3. control the quality of the product
  Synonym:seecheckinsuresee to itensurecontrolassure
• learn or discover with certainty
• establish after a calculation, investigation, experiment, survey, or study
  1. find the product of two numbers
  2. The physicist who found the elusive particle won the Nobel Prize
  Synonym:determinefindfind out
• find out, learn, or determine with certainty, usually by making an inquiry or other effort
  1. I want to see whether she speaks French
  2. See whether it works
  3. find out if he speaks Russian
  4. Check whether the train leaves on time
  Synonym:determinecheckfind outseewatchlearn

双语例句

• They did tests to ascertain the sex of the baby before it was born.
  他们做了一些试验，在产前弄清婴儿的性别。
• Ascertain or determine by measuring, computing, etc..
  通过测定、计算等来确定或决定。
• Designed to find information or ascertain facts.
  意在发现信息或者探知事实。
• But it's important that I ascertain these things.
  但让我知道究竟放生了什么很重要。
• Are many factors that can cause insomnia, so treatment of insomnia to ascertain the cause of symptomatic treatment.
  很多种因素可以引起失眠，所以治疗失眠要查明原因，对症治疗。
• The coating manufacturer shall be consulted to ascertain the proper cure time and methods.
  需要咨询喷涂厂家确定适当的固化时间和方法。
• It is too soon to ascertain what effect this wilt have on the environment.
  很难很快确定这会对环境产生什么样的影响。
• It was easy to ascertain this; but how could he risk the question?
  要确定这一点倒也不难，但他怎么能冒险去问人呢？
• Take time to ascertain what services your bank is providing, and at what cost.
  花些时间确认一下你的银行会提供什么样的服务，费用是多少。
• The ESB will ascertain whether this user is authorised to make the request before proceeding.
  ESB将在处理前断言此用户是否得到了进行此请求的授权。