ascertain
🇺🇸
/ˌæsərˈteɪn/
🇬🇧
/ˌæsəˈteɪn/
verb
R
to find out for sure
We need to ascertain the exact time of arrival.
我們需要確定確切的到達時間。
translation
查明
詞形變化
3rd Present
ascertains
Past
ascertained
Perfect
ascertained
Progressive
ascertaining