of course 和certainly的区别是什么?
1个回答

of course比certainly更口语化,都是当然的意思

certainly是严格按照adverb形式使用的,而of course可以随便插入适当的日常对话中

“he of course knows it”/ “he knows if of course”

He certainly understand it.

写正式essay的时候千万不能用of course,但certainly是可接受的