.表示时序first, second, thirdfinally firstly, secondly, thirdlyfinally first of all, next then, lastly 表总结On the whole, in conclusion, in a word, to sum up, in brief, in summary, in short, in general, generally speaking, above all, 过渡性连接词表强调：still, indeed, of course, after all, above all, surely, certainly, undoubtedly, in any case, anyway, in fact, especially, obviously, clearly 表比较like, unlike, similarly, in the same way, equally, similar to 表对比by contrast,
