ascertain /ˌæsɚˈteɪn/ verb ascertains; ascertained; ascertaining
ascertains; ascertained; ascertaining
Learner's definition of ASCERTAIN
[+ object] formal
: to learn or find out (something, such as information or the truth)查明；弄清 -
They were unable to ascertain [=(more commonly) determine] the cause of the fire.他们无法确定火灾原因。
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The police are now attempting to ascertain his whereabouts. [=to find out where he is]警方目前正努力追查他的下落。
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Her doctors have been unable to ascertain [=find out] why she is ill. = Her doctors have been unable to ascertain the cause of her illness.她的医生至今无法确定她的病因。
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The information can be ascertained by anyone with a computer.任何人用一台电脑都能够确认这则信息。
— ascertainable
/ˌæsɚˈteɪnəbəl/ adjective