英汉词典

onomastics operably outraged octroi optimum ownerless outcomes oot oneiric olds overslaughing ordination oncolytic outlearn octave orthophosphate outdoor oothecae occupied overuse outshone obstructed oophorectomy outsize osteomyelitis overshine offences ovals opusculum overstep opinions obey observations orca occult outbreed oppilate outfield overcivilized occupancies oviducal orthotropism orchids oppressively orderer offing opines oom overzealous offeror oregano overrunning overhand ostentation orcinol orangish osseous oxygenates ornamentation offprints obeah ottomans overreach orthogonally odoriferous optimisation ophthalmoscope orthostatic opaquely outrank olefin overshot ombre operationism overachiever optimization outright outlays overriding ozonosphere overstated outnumber ochlocracy overtopping occasionalism orthotropic orogeny overbearing oyez overland oboe obsolescing offline osteopetrosis omens outlines occipital ossicular oriole osteoma