Optical Branch光频支 Original Budget原来预算 Olfactory Bulb嗅球 other budgetary其他预算 Ohne Binde (German: without a pad; tampon brand)Ohne Binde(德国:没有一个垫;棉球品牌) Out of Bounds (National Park Service or golf slang)出格的事情(国家公园服务或高尔夫术语) Over Burden (mining)过负荷(矿业) Outbye (mining)Outbye(矿业) Ordinary Break (railway defect)普通(铁路缺陷) Oingo Boingo (band)Oingo Boingo(带) Occult Blood隐血,潜血 Obliterative Bronchiolitis闭塞性细支气管炎 Obstetrician产科医生 Operating Budget营业收支预算 Order of Battle战斗序列