I don't understand(我不大白。 )

I don't really understand(我不太大白。 )

That's

not clear (我不清晰。 )

I can't see your point (我不大白你在说甚么。)

I can't understand what you mean(我不大白你的意思。 )

I'm not sure what you mean (我弄不清晰你想说甚么。)

I don't know what's what (我底子不晓得这是怎样回事。 )

It's over my

head (太难了，我弄不懂。)

Your guess is as good as mine(我也搞不清晰。 )

The more I think about it, the less I understand it (越想越胡涂。 )

I don't know what he is driving at (我不晓得他要干甚么。 )

What's she after? (她到底想干甚么?)



I have no idea (我一点儿都不晓得。)

I didn't know that (我怎样不晓得。)

I don't know (不晓得。/不太清晰。)

I don't know for sure (我不太清晰。)

No one knows for sure (谁也不晓得切当的环境。 )

How should I know? (我怎样会晓得?)

Who knows? (谁能晓得?)