1.表示强调still,indeed,apparently,oddlyenough,ofcourse,afterall,significantly,interestingly,also,aboveall,surely,certainly,undoubtedly,inanycase,anyway,aboveall,infact,especially,obviously,clearly2.表示比较like,similarly,likewise,inthesameway,inthesamemanner,equally3.表示对比bycontrast,onthecontrary,while,whereas,ontheotherhand,unlike,instead,but,conversely,differentfrom,however,nevertheless,ot...