ascertained
v. 弄清,確定,查明( ascertain的過去式和過去分詞 )
If you ascertain the truth about something, you find out what it is, especially by making a deliberate effort to do so.
Through doing this, the teacher will be able to ascertain the extent to which the child understands what he is reading...
這樣一來,老師就能確定孩子們對他所讀的內容理解多少了。
Once they had ascertained that he was not a spy, they agreed to release him...
一旦確認他並非間諜,他們即同意將他釋放。
1. discovered or determined by scientific observation;
The previously unidentified objects have now been definitely ascertained as being satellites.
原來所說的不明飛行物現在已證實是衛星.
I ascertained that she was dead.
我斷定她已經死了.
It'should be ascertained if preventive or control procedures have already been attempted.
應查明是否已採取了預防或控制措施.
I ascertained that he was dead.
我得知他已經死了.
We ascertained that he was dead.
我們斷定他已死了.