refer to 可不可以在句首用?

refer to 可不可以在句首用? 你指的是?这个指可不可以用REFER TO this is a book (refer to ) the life in south africarefering to为什么?怎么不是refered to?which refer to可不可以?这里完全不明白,refering to 在这里做什么什么成分, refer to refer to refer to refer to 的含义 refer to 什么意思? 翻译：refer to refer to .as .是什么 refer to ,attampt是什么意思 refer to 的用法 refer to和refer to...as...的区别 refer to 麻烦问一下. refer to means啥意思? what refer to sb means? refer to有些什么用法? Pls refer to enclose schedule