it is clean when it is black.it is dirty when itis white.wha
it is clean when it is black.it is dirty when itis white.wha
what is black when it is clean and white when it is dirty是--
What is clean when it is black and dirty when it is white?
That is black when it is clean and white when it is dirty
What is black when it is clean and white when it is dirty?
what is black when it is clean and white when it is dirty?用英
What is black when it is clean white when it is dirty?
脑筋急转弯:1 What's black when it is clean and white it is dirty?
猜谜语:It is clean when it is black.It is dirty when it is whit
It is clean when it is black.
What is biack when it is clean and white when it is dirty?
What、is、black、when、it、is、clean、and、when、it、is、dirty·谜底是什么?