单词	tra-la
释义	tra-la trəˈlä, (ˈ)trä¦lä variants or tra-la-la ¦trälə¦lä or less commonly tralira ¦trälə¦rä —used to suggest gaiety, lightheartedness, or playful derision especially in song Word History Etymology origin unknown
随便看	otises otisses otitid Otitidae otitides otitis otitis media otium cum dignitate oto oto- otoconia otoconial otoconium Otocyon otocyst otocystic otocysts otoes otoganglia otoganglions otolaryngologic otolaryngological otolaryngologies otolaryngologist otolaryngologists

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