英汉词典

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