ascertain

US /ˌæs.ɚˈteɪn/
UK /ˌæs.ɚˈteɪn/
"ascertain" picture
1.

查明, 確定, 弄清

find something out for certain; make sure of

:
I need to ascertain the truth before I make a decision.
在做決定之前,我需要查明真相。
The police are trying to ascertain the cause of the accident.
警方正在努力查明事故原因。