长城专用润滑油:What is black when it is clean white when it is dirty?
来源:百度文库 编辑:高校问答 时间:2024/10/03 15:28:14
意思和答案
什么东西在黑的时候是干净的, 而在白的时候是脏的
黑板Blackboard
What is clean when it is black and dirty when it is white?
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?
Riddles(What is black when it is clean and white when it is dirty?)
What is black when it is clean white when it is dirty?
What is black when it isclean and white when it is dirty?
What is black when it`s chean and white when it`s dirty?
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I am black when you get me,red when you use me,and white when you're all through with me. What am I
what is the black hole is?