1) but, but on the contrary, but on the other hand, but then;
2) by contrast, in contrast, in contrast with/to, as a contrast to, as opposed to;
3)by contraries, on the contrary, to the contrary, contrary to (A), opposite to, in opposition to;
4) whereas, while, while on the other hand, while on the whole, yet, however;
5) (as) compared with/to, by comparison, in comparison with, by comparison to.
6) First..., Next..., Last...;
7) In the first/early/initial/infant period/stage/phase(或In its infancy) ..., In the second/middle/adult/ripe period/stage/phase..., In the third/last/closing/later/concluding period...;
8) One step (way/course/approach/secret/trick)..., Another step..., Still another step...;
9) The first measure/step/move..., Next to it comes..., And the last/final/the most important measure...;
10) The direct experience/lesson/factor/way(或One lesson)...The indirect experience/lesson/factor/way(或The other lesson)...
1 但是；但相反地；但另一方面；但是接下去；
2 通过对比；经过对比；经与…过对比；作为与…的对比；作为…的对照；
3 相反；相反；相反；与A相反；与…相反；与…相反；
4 然而；然而；然而另一方面；然而整体而言；然而；然而；
5 跟…相比
6 首先…；其次…；…；
7 在个/早期/开始/婴儿时期/阶段；在第二个/中间/成人/成熟时期/阶段；在第三个//结束/后面的阶段；
8 一个措施/方法/做法/秘密/计策是…；另一个措施是…；还有一个措施是…；
9 个措施是…；接着是…；一个/最重要的措施是…；
10 直接经验/教训/因素/途径是（一个教训是）…；间接经验/教训/因素/途径是（另一个教训是）
