asc
er
tain
第三人称
ascertains
现在进行时
ascertaining
过去式
ascertained
过去完成时
ascertained
1
确定, 查明
to determine something with certainty by careful examination or investigation
及物动词
- 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。
- 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。
- The doctor ascertained the diagnosis by performing various medical tests.
医生通过进行各种医学测试确定了诊断。
- I ascertain the facts before making a decision.
我在做决定之前确定事实。
- We are ascertaining the availability of resources.
我们正在确定资源的可用性。
2
使确信, 确认
to make someone sure or confident about something
及物动词
- 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。
- 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。
- The letter ascertained the workers of the new safety procedures.
这封信使工人们确信了新的安全程序。
- His speech ascertained the audience of the importance of the project.
他的演讲让观众确信了该项目的重要性。
- We prayed to be ascertained of the good news soon.
我们祈祷能很快确信这个好消息。