What's full when it's used and empty when it's at rest?

问题描述:

What's full when it's used and empty when it's at rest?
猜猜```
为什么哦
1个回答 分类:英语 2014-11-16

问题解答:

我来补答
shoes鞋
穿的时候是满的,不穿的时候(休息的时候)当然是空的啰.
 
 
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