if white chalk chalks white on a black blackboard,这句话的意思

if white chalk chalks white on a black blackboard,这句话的意思 If white chalk chalks white on a black blackboard, If white chalk chalks white on a black blackboard,will black a black and white a white and black Miss black?Miss white?的意思 It's black and white.这句话对吗,还是应该用They're black and white? black or white歌词意思 （）the blackboard,you can see two black and white a black and white bird a white elephant的意思 a white lie的意思