don't-know
US /doʊntˈnoʊ/
UK /doʊntˈnoʊ/
1.
一無所知的人, 不確定的人
a person who is ignorant or undecided about something
:
•
He's a bit of a don't-know when it comes to politics.
他在政治方面有點一無所知。
•
The survey showed a high percentage of don't-knows regarding the new policy.
調查顯示，對新政策一無所知的人比例很高。