三、 一二三原则
1)to begin with, then, furthermore, finally(强烈推荐)
2)to start with, next, in addition, finally(强烈推荐)
3)first and foremost, besides, last but not least(强烈推荐)
4)most important of all, moreover, finally
5)on the one hand, on the other hand(适用于两点的情况)
6)for one thing, for another thing(适用于两点的情况)