deРSt=Stat立 stage、stop、state、stature、status、stationРsist=stis=stand 立 resist、consist、consistently、exist、persist、constitute、instituteРcours=curs=cus=cour=cur 跑[k3:] car course、concur、our、curriculum、corridorРdrom 跑 drive aerodrome、hippodrome、motordrome、syndromeРmigr=to remove 迁移 migrant、migrate、emigrate、immigrateРfug=to flee 逃,散 refuge、refugee、lucifugous、vermifuge Рpet=to seek petitive、appetite、appetent Рsec=sequ=to follow 跟随 second、persecute、pursuit、consequenceРsalt=sult=sail=to leap 跳 saltant、insult、result、exult、assail、assault、consultР身Рtend=tent=tens=to stretch 伸 extend、extension、attend、contend、extent、intense、portent、intendРclin=clens=to lean 倾[ai] decline、declension、inclineРcub=cumb=to lie down 躺,卧 cubicle、incubate、incubus、accumbentРtrem 颤抖,震颤 tremble、tremulous、tremendousРvibr 振动 vibrate