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
By conducting experiments, scientists ascertained the effectiveness of the new drug.
通过进行实验，科学家们确定了新药的有效性。
02
使确信, 确认
to make someone sure or confident about something
Transitive: to ascertain sb of sth
例子
I will ascertain you of the meeting schedule once it's confirmed.
一旦确认，我会通知你会议时间表。
词汇树
ascertainable
ascertained
ascertain
