为什么是she is an eight-year-old girl?she is an eight-years-old girl为_其他解答

为什么是she is an eight-year-old girl?she is an eight-years-old girl为什么不对呢?这跟an有关系吗?
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人气：107 ℃　时间：2019-08-20 01:30:14

解答

数词与名词组成的复合形容词,用‘-’ 连接,名词不能加S,这是规定的,与AN 无关