问题描述： 序数词前加a吗? 1个回答 分类：英语 2014-10-19 问题解答： 我来补答 序数词前可加a.但需区别：不定冠词（a/ an）+序数词 表示"又一/再一"的意思 定冠词（the）+序数词 表示"第几"的意思 This is the second time I have come here.第二次来 The man had two houses in the country,and he bought a third one.又买了一所房子. 展开全文阅读
