lackboard 黑板
what is white when it is dirty 猜猜what是什么
5个回答
相关问题
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What is biack when it is clean and white when it is dirty?
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What is black when it is clean and white when it is dirty?
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【what is clean when it black ,and white when it is dirty.
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1.What is black when it is clean and white when it is dirty?
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what is black when it is clean and while when it is dirty
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What is it?猜猜这是什么?
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趣味英语问答（1）what is black when it is clean and white when it is
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---What is this_________?It is white ruler.