问题描述：
we have no rooms availiable for you | room一定要复数吗?
room一定要复数吗?
单数是病句吗?we have no room availiable for you
有什么区别
room一定要复数吗?
单数是病句吗?we have no room availiable for you
有什么区别
问题解答：
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