表层进
　　first, firstly to begin with
　　second, secondly to start with
　　third, thirdly what‘s more
　　also and then
　　and equally important
　　besides in addition
　　further in the first place
　　still furthermore
　　last last but not the least
　　next besides
　　too moreover
　　finally
　　
　　表举例
　　for example for instance
　　to illustrate as an illustration
　　after all 　
　　
　　表解释
　　as a matter of fact frankly speaking
　　in this case namely
　　in other words 　
　　
　　 表总结
　　in summary in a word
　　in brief in conclusion
　　to conclude in fact
　　indeed in short
　　in other words of course
　　it is true specially
　　namely in all
　　that is to summarize
　　thus as has been said
　　altogether in other words
　　finally in simpler terms
　　in particular that is
　　on the whole to put it differently
　　therefore 　
　　
　　 表强调
　　of course indeed
　　above all most important
　　emphasis certainly in fact
　　
　　 表让步
　　still nevertheless
　　in spite of all the same
　　even so after all
　　concession granted naturally
　　of course 　
　　
　　表比较
　　in comparison likewise
　　similarly equally
　　however likewise
　　in the same way 　
　　
　　表转折
　　by contrast although
　　at the same time but
　　in contrast nevertheless
　　notwithstanding on the contrary
　　on the other hand otherwise
　　regardless still
　　though yet
　　despite the fact that even so
　　even though for all that
　　however in spite of
　　instead 　
　　
　　表时间
　　after a while afterward
　　again also
　　and then as long as
　　at last at length
　　at that time before
　　besides earlier
　　eventually finally
　　formerly further
　　furthermore in addition