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
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- It can be difficult to ascertain the facts.
可能难以查明事实真相。 - I ascertained that the driver was not badly hurt.
我已查清，驾驶员伤势不重。 - It should be ascertained that the plans comply with the law.
须要弄清楚，这些计划要合法。 - The police are trying to ascertain what really happened.
警方正设法查清到底发生了什么。 - Could you ascertain whether she will be coming to the meeting?
请你弄清楚她来不来开会好吗？ - 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。
- It can be difficult to ascertain the facts.
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.- 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。 - 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。 - 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。
- Through doing this, the teacher will be able to ascertain the extent to which the child understands what he is reading...
英英释义
verb
- be careful or certain to do something
- He verified that the valves were closed
- See that the curtains are closed
- control the quality of the product
- learn or discover with certainty
- establish after a calculation, investigation, experiment, survey, or study
- find the product of two numbers
- The physicist who found the elusive particle won the Nobel Prize
- find out, learn, or determine with certainty, usually by making an inquiry or other effort
- I want to see whether she speaks French
- See whether it works
- find out if he speaks Russian
- Check whether the train leaves on time