Definition: If you are unclear about something, you are not certain about it. Level: B2
我对你提案中的几点不太清楚。
I'm ___unclear ___about a couple of points in your proposal.
许多学生对新考试形式不太清楚。
Many students ___are ___unclear ___about the new exam format.
她不确定会议什么时候开始。
She ___was ___unclear ___about what time the meeting started.
