0 to discover something:
The police have so far been unable to ascertain the cause of the explosion.
[ + question word ] Have you ascertained whether she's coming or not?
[ + that ] I ascertained that no one could overhear us before I told Otto the news.
1 to discover a fact; to make certain:
The fire department has been unable to ascertain the cause of the fire.
Susceptibility to rheumatic fever have been ascertained because of the poor quality of records in earlier years.
All are vulnerable to software bugs, however, at any time and so the liability of software companies needs to be ascertained.
In addition, the joint effects of pollutants and parasitism on the immune system of the host has not been ascertained.
First, the sample is epidemiologically ascertained, thereby eliminating possible biases associated with treatment-seeking.
Each condition was ascertained by a separate question.
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.
He ascertains specific distinctions in the nature of signs and their social functions and stresses that signs are determined by their systems.
To date however, the effect of an intestinal adult tapeworm on leucocyte migration from the pronephros has not been ascertained.
中文繁体
弄清,確定,查明, 確信…
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弄清,确定,查明, 确信…
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establecer, determinar, esclarecer…
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estabelecer, certificar-se, assegurar-se…
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saptamak, tespit etmek, belirlemek…
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établir…
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zjistit…
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finde ud af…
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