1.important=crucial =significant=vital=essential=critical=

　　fatal=concernful=necessary

　　2.common=universal=ubiquitous=

　　general=widely

　　3.abundant=ample, plentiful =sufficient

　　4.stick=adhere=cling =insist=persist

　　5.neglect=ignore=overlook=elide=lose sight of sth.

　　6.near=adjacent=adjoin =close to

　　7.pursue=woo, seek =chase=aspire

　　8.accurate=precise, exact

　　9.vague=obscure=dim=indistinct=

　　fuzzy

　　10.top=peak=summit=acme

　　11.competitor=rival=opponent

　　12.blame=condemn =make illegal=abuse=censure=denounce=curse=

　　imprecate

　　13.opinion=perspective=standpoint=idea=viewpoint=point of view

　　14.fame=prestige, reputation=distinction

　　15.build=erect=establish=found

　　humble pie

　　16.insult=humiliate =put sb. to shame

　　17.complain=grumble =murmur at

　　18.primary=radical , fundamental

　　19.relieve=alleviate =lighten=ease=remit