refer to中,to的词性?不定式还是介词?
问题描述:
refer to中,to的词性?不定式还是介词?
答
介词
解决这种to的词性可以造句或从字典例句中总结
如造句 Please refer to your preference books if you meet problems.
White-collar workers refers to people who work in offices.
refer to直接加名词,to为prep.