Oceanic Resource Foundation海洋资源的基础 Owner's Risk of Fire火险由货主负责 Ohio Renaissance Festival (Wilmington, Ohio)俄亥俄州文艺复兴时期的节日(特拉华州俄亥俄州) Ontario Renaissance Festival (Milton, Ontario)文艺复兴时期的节日(米尔顿,安省安大略) Ontario Research Foundation (now ORTECH International)现在ORTECH安大略研究基金会(国际) Operations Research and Facilities运筹学和设施 Open Reading Frame开放读码框 Operational Readiness Float操作准备浮动 open readeing frame开放读码框 Oesterreichischer Rundfunk (Austrian radio and television company)Oesterreichischer Rundfunk(奥地利广播电视公司) Old Retired Fart老退休的屁 Official Representation Funds官方表示资金 Outside Right Forward (soccer)右外(足球) Our Retired Friends我们的退休的朋友 Oesterreichischer Rundfunk (Austrian Broadcasting Corporation)Oesterreichischer Rundfunk(奥地利广播公司)