What do you throw out when you want to use it,but take in when you don't want to use it
问题描述:
What do you throw out when you want to use it,but take in when you don't want to use it
答
你问什么呀? 是意思还是谜底?
答
什么东西当你想要用的时候将它丢掉,而不用的时候将它拿回来?