6. 时间项标志词

when / how / today / as / before / after / since / then / until / ……

7. 解释项标志词

namely / in other words / that is / that is to say / ……

8. 目的项标志词

In order to / for

9. 总结项标志词

all in all / in brief / to conclude / at last / in summary / in short

10.强调项标志词

副词：especially / particularly / almost / always / usually

动词：show / remember / note / notice / say / pronounce /