.增补(Addition) in addition另外, furthermor e此外, again, also, besides, moreover此外 , similarly, finally最后 2.比较(Comparison) in the same way, likewise同样地, similarly, equally, in comparison比较起来, just as同样地 3.对照(Contrast) whereas然而, in contrast与此相反, on the other hand, instead同样, however然而, nevertheless然而, unlike, even though即使, 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
