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

• 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。
• 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。
• We ascertained that he was dead.
  我们断定他已死了。
• It appears that some little trouble was caused by a woman, whose name has not been ascertained.
  看来这件小小的麻烦是由一个至今尚不清楚其姓名的女人所引起的。
• 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。
• Not capable of being definitely decided or ascertained.
  不能被明确的决定或者确定。
• 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？
• When these models are applied in combination with seismic profiles and core analysis, existence and distribution of the volcanic cones can be ascertained.
  实践表明该模式和地震剖面、取心等有机结合，可以确定火山锥的存在及分布状况。
• The actual site was eventually ascertained.
  实际的出土遗址也最终确定了。
• The laws ascertained by the physicist often become the bases for new sciences.
  物理学家所探明的那些规律常常成为新学科的基础。