to ascertain
01
确定, 查明
to determine something with certainty by careful examination or investigation
Transitive: to ascertain sth
语法信息
形态构成
派生
动作动词
规则
现在时
ascertain
第三人称单数
ascertains
现在分词
ascertaining
一般过去时
ascertained
过去分词
ascertained
例子
The detective ascertained the identity of the culprit through fingerprint analysis.
侦探通过指纹分析确定了罪犯的身份。
02
使确信, 确认
to make someone sure or confident about something
Transitive: to ascertain sb of sth
例子
The teacher ascertained the students of their success in the final exam.
老师确信学生们在期末考试中会取得成功。
词汇树
ascertainable
ascertained
ascertain
