强调
　　still, Indeed, apparently, oddly enough, of course, after all, significantly, interestingly, also, above all, surely, certainly, undoubtedly, in any case, anyway, above all, in fact, especially, obviously, clearly.

　　比较
　　like, similarly, likewise, in the same way, in the same manner, equally.

　　对比
　　by contrast, on the contrary, while, whereas, on the other hand, unlike, instead, but, conversely, different from, however, nevertheless, otherwise, whereas, unlike, yet, in contrast.

　　列举
　　for example, for instance, such as, take …for example. Except (for), to illustrate.