Louis Ⅳ

路易四世[神圣罗马帝国皇帝，(1314～1347年)在位]

• ophites
• ophryon
• ophthalmia neonatorum
• ophthalmology
• ophuls，max
• opie，john
• opinion
• opinioned
• opitz，martin
• opium
• opium poppy
• opole
• oporto(或porto)
• opossum
• oppenheimer
• oppenheimer，j.robert
• opponent
• opportune
• oppose
• opposed
• opposeless
• opposite
• opposition
• oppress
• oppressed