1.to refer to sth
(mention)提到;提及
What are you referring to?你指的是什么?
2.to refer to sth
(seek information from)查阅;查看
He referred briefly to his notebook.他简单地翻看了一下自己的笔记。
3.to refer to sth
(relate to)关于;有关
This song refers to an incident in the civil war.这首歌是关于内战中的一次冲突。