O字開(kāi)頭的單詞或詞組
outcastovereatonlookerorthogonalon the shelfobligingOCohmicorange juiceoutside loopoutnumberoxidationoffer priceOEMout of dangerousteroutput powerout of the worldordealoverkillon the telephoneob-overallsogiveon tapoccupantoddlyorderingomnibusoryxone dayon the increaseoximeterorioleO-levelopeneroff-trackoutpaceon the edge ofoboeor somethingophthalm-
