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, primarily, in particular,
undoubtedly, absolutely, most imprtant
6.让步(Conc