ascertained

英 [ˌæsəˈteɪnd]

美 [ˌæsərˈteɪnd]

v.  查明; 弄清
ascertain的过去分词和过去式

过去分词：ascertained　过去式：ascertained　

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

adj

• discovered or determined by scientific observation
  1. variation in the ascertained flux depends on a number of factors
  2. the discovered behavior norms
  3. discovered differences in achievement
  4. no explanation for the observed phenomena
  Synonym:discoveredobserved

双语例句

• CHD events were ascertained by linkage to national registers.
  通过与国家登记部门联系确认冠心病事件。
• We ascertained that he was dead.
  我们断定他已死了。
• The pathway of DDT degradation in soil has not been fully ascertained.
  在土壤中滴滴涕降解的途径还没有充分调查。
• The occurrence rules of rice planthopper in rice field with cultural crab was ascertained through systemic investigation and field census.
  通过系统调查和大田普查相结合的方法，研究明确了养蟹稻田稻飞虱的发生规律。
• Birth outcomes were ascertained for1280 ( 94%) of the1369 women enrolled.
  确定了所招募的1369名妇女中1280名（94%）的分娩结果。
• Result The calibration result and calibration curve was ascertained and analyzed.
  结果：实验得出了系统的定标结果及定标曲线，并对此进行了分析。
• Have you ascertained whether she's coming or not?
  你是不是问明白了，她究竟来还是不来？
• How severely has yet to be ascertained.
  现在还不能确定多严重。
• He had ascertained that his son-in-law was among the living prisoners.
  他已查明，他女婿在活着的囚犯之中。
• 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。