【编者按】威廉希尔app 英语四六级频道为大家收集整理了“2012英语四级词汇复习技巧辅导”供大家参考，希望对大家有所帮助!
LESSON THIRTEEN
ACERB/ACRI acid acidify acidity acidulate acidulous acrimonious acerbic acrid acrimony exacerbate
STRING/STRICT string stringency straight strain strait straiten strangle strangulate stress stretch strict strictness stricture astringency constringe constrain constrained constraint constriction constrictive constrictor distress distressful district overstrain restrain restraint restrict restriction restrictive astringent constrict prestigious stringent
STRU/STRUCT structure structural construct construction reconstruct reconstruction construe destroy destruct destructible destruction destructive instruct instruction instructive instructor instrument instrumentality misconstrue misconstruction obstruct obstruction obstructive substructure superstructure deconstruction infrastructure construe instrumental
PROP/PROPRI proper property proprietor proprietorship appropriation appropriator expropriation impropriety misappropriate misappropriation appropriate expropriate proprietary propriety
TORT/TORS torture torturer tortuous tortoise torment torch contort contortion contortionist distort distortion extortion retort tort extort torsion tortuous
VIV victual viand vital vitality vitalize vivacity vivid vivify vivisect devitalize revitalize revive revivification reviviscence survive survival survivor convivial revivify vivacious vivisection
SERV serve servant service servility serf serfdom sergeant conserve conservancy conservation conservative conservatory deserve disserve disservice observe observance observation observatory preserve preservation preservative reserve reserved reservation reservoir serviceable servile servitude subservient
CLUD/CLUS close closet closure conclude conclusion conclusive disclose
disclosure enclose exclude exclusion exclusionism exclusive include inclusion
inclusive occlude preclusion reclusion reclusive seclude secluded claustrophobia
occlusion preclude recluse seclusion