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单词 ascertain
释义
ascertain
verb[T]
formal
uk
/ˌæs.əˈteɪn/us
/ˌæs.ɚˈteɪn/
todiscoversomething:
弄清，确定，查明
Thepolicehave sofarbeenunableto ascertainthecauseof theexplosion.警方到目前为止尚未查明爆炸原因。
[+ question word]Have you ascertainedwhethershe's coming or not?你问清楚了吗，她来还是不来？
to makecertainof something:
确信
[+ that]I ascertainedthatno one couldoverhearus before I told Otto thenews.确信没有人能听到我们的谈话之后，我才把这个消息告诉了奥托。
SMART Vocabulary: related words and phrases
Finding and discovering
  • a fishing expeditionidiom
  • break (fresh/new) groundidiom
  • breakthrough
  • bringsomethingto lightidiom
  • catchsomeonered-handedidiom
  • catchsomeonewiththeirpants/trousers downidiom
  • flushsomeone/somethingout
  • fossick
  • found
  • geocache
  • pinpoint
  • putsomeoneontosomething
  • putyourfinger onsomethingidiom
  • rake
  • rakesomethingout
  • red-handed
  • rediscover
  • rumble
  • sniff
  • uncover
See more results »
(Definition ofascertainfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)

ascertain| American Dictionary

ascertain
verb[T]
us
/ˌæs·ərˈteɪn/
todiscoverafact; to makecertain:
Thefiredepartmenthas beenunableto ascertain thecauseof thefire.
(Definition ofascertainfrom theCambridge Academic Content Dictionary© Cambridge University Press)

Examplesofascertain

ascertain
Susceptibility to rheumatic fever have been ascertained because of the poor quality of records in earlier years.
From theCambridge English Corpus
All are vulnerable to software bugs, however, at any time and so the liability of software companies needs to be ascertained.
From theCambridge English Corpus
In addition, the joint effects of pollutants and parasitism on the immune system of the host has not been ascertained.
From theCambridge English Corpus
First, the sample is epidemiologically ascertained, thereby eliminating possible biases associated with treatment-seeking.
From theCambridge English Corpus
Each condition was ascertained by a separate question.
From theCambridge English Corpus
The words designate underlying meanings, and it is these inner meanings - the characters' mental states - which have to be ascertained and conveyed to the spectator.
From theCambridge English Corpus
He ascertains specific distinctions in the nature of signs and their social functions and stresses that signs are determined by their systems.
From theCambridge English Corpus
To date however, the effect of an intestinal adult tapeworm on leucocyte migration from the pronephros has not been ascertained.
From theCambridge English Corpus
An evaluation of the family history method for ascertaining psychiatric disorders.
From theCambridge English Corpus
The answer to this question cannot be ascertained at fir st sight even on physical grounds.
From theCambridge English Corpus
However, the relationships between rap and canzone d'autore, apart from this generic convergence in a vaguely defined oppositional youth culture, have still to be ascertained.
From theCambridge English Corpus
The location and repair of recent water pipe breaks was ascertained.
From theCambridge English Corpus
Where significant funding for project establishment and ongoing operations was not ascertained, the project developers incurred higher search costs.
From theCambridge English Corpus
There are a number of ways in which the influence of shared environmental effects can be ascertained and minimized in the analysis of natural populations.
From theCambridge English Corpus
How can vertical and horizontal equity be ascertained throughout the country?
From theCambridge English Corpus
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
#https://dictionary.cambridge.org//dictionary/english/ascertain##
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更新时间：2024/12/27 20:34:08