1.增补(Addition)
in addition, furthermore, again, also, besides, moreover, what`s more, similarly, next, finally.
2.比较(Comparison)
in the same way, likewise, similarly, equally, in comparison, just as
3.对照(Contrast)
whereas, in contrast, on the other hand, instead, however, nevertheless, unlike, even though, on the contrary, while
4.因果(Cause and effect)
because, because of, for, since, due to, owing to, thanks to, as a result(of), accordingly, hence, so, thus
5.强调(Emphasis)
certainly, above all, indeed, of course, surely, actually, as a matter of fact, chiefly, especially,
