O字开头的单词或词组
on the decreaseodiouson accountoddnessoverstockon...basisOxbridgeon the mapoff dutyoverbearingoddlyOPD.on the roadone-to-oneorallyorderingon the other handOCRoversightosteoarthritisonly tooobliterateowner's capitalon the benchoncogeneon viewon consignmentoiledoxy-oofoutpaceoverfishout of businessorchestrationopiumonce for alloil pumpoperation managerOrientalismopen fireozone layerorganizational
