O字开头的单词或词组
overindulgenceOne cannot make a silk purse out of a sow's earochobservableon the declineovertookoutcastoverboardomeletteout of pocketonrushone dayon trialOLEoffice hoursoriginationonanismold stockodometeroverflyold-timeon the joboomphobscenityout of stepon grounds ofout of useopening balanceosmosisocarinaorbitaloff-lineOCovertime workoutburstorthographicorthodonticsoff-dutyon the fenceoff-dayodorlessoil seal
