写英语文章时,需要对一套理论进行分述,是用first、second...last这样的格式,还是用firstly,secondly.

题目

写英语文章时,需要对一套理论进行分述,是用first、second...last这样的格式,还是用firstly,secondly.
lastly这样的格式?

答案

都可以,用法完全相同.
还可以说 first of all,second of all,third of all.
first off,second off,third off.