O字开头的单词或词组
orderingon...basison requeston consignmentonlayoff dutyon the maporallyoverweighon the benchoddlyon account ofonly tooout of businessozoneonce for alloperation managerOCRooforchestrationobliterateone-to-oneon the other handon the roadoversightoverbearingopen fireozone layeron the airOrientalismoiledoil spillocta-os1oil pumpout of boundsoutpaceoncogeneon accounton viewoakumother one
