whereas, in contrast, on the other hand, instead, however, nevertheless, unlike, even though, on the contrary, while
in addition, furthermore, again, also, besides, moreover, what`s more, similarly, next, finally.
in the same way, likewise, similarly, equally, in comparison, just as
although, though, after all, in spite of, nevertheless, still, provided, while it is true....
5.因果(Cause and effect)
because, because of, for, since, due to, owing to, thanks to, as a result(of), accordingly, hence, so, thus
certainly, above all, indeed, of course, surely, actually, as a matter of fact, chiefly, especially, primarily, in particular, undoubtedly, absolutely, most imprtant
7.时间和空间(Time and space)
afterward, after, first, later, then, soon, outside, near, beyound, above, below, on the right(left), in the middle, opposite, in front of
therefore, as a result(of), consequently, accordingly, so, otherwise
to sum up, to conclude, in a word, in short, in brief, all in all, in all, to put it in a nutshell, in summary
for example, for instance, that is, namely, such as, in other words, in this case, by way of illustration.