Definition: to be completely unable to guess, understand, or deal with something Level: B2
我完全不知道你在说什么。
I ___haven't ___a ___clue what you're talking about.
我对此一无所知。
I ___haven't ___a ___clue about it.
他完全不知道把钥匙丢在哪里了。
He ___hasn't ___a ___clue where he left his keys.
