O字开头的单词或词组
oscillateout of habiton holidayocto-overdueoriginal characterobviateon the moveorthopedicsobscurityoverageoverdraftoutboundophthalmologyoverstateopen one's eyes toon leaveorganizationalonerousown toon the houseorienteeringopen seaovershadoworificeoutbackoversightoxidativeorthogonalon one's toesoddlyoff-keyoctaneoutcryombudsmanout-of-pocketomnivoreolfactoryoil pump purifierordealon the matorange juice
