英语写作技巧之一二三原则答:1) first, second, third, last(最常用)2) firstly, secondly, thirdly, finally(不常用)3) the first, the second, the third, the last(不常用)4) in the first place, in the second place, in the third place, lastly(不常用)5) to begin with, then, furthermore, finally(...