GRE英语词汇单词大全
- opus
- optimist
- oracle
- obviate
- ornate
- onus
- orchid
- obsessive
- obeisance
- obfuscate
- obituary
- obloquy
- obscurity
- obsolescent
- obverse
- occlude
- odium
- ogle
- oligarchy
- omnipresent
- onerous
- opacity
- operative
- opine
- oratory
- ordnance
- otter
- outlandish
- outwit
- overdose
- overrule
- oxidize
- olfactory
- occidental
- obelisk
- onslaught
- optimization
- otiose
- oak
- oasis
- oath
- obdurate
- obedient
- obese
- objection
- objective
- obligation
- obligatory
- oblige
- obliging
- oblique
- obliterate
- oblivious
- obnoxious
- obscure
- obsequious
- observatory
- obsess
- obsessed
- observatory
- obsession
- obsolete
- obstacle
- obstinacy
- obstinate
- obstreperous
- obtainable
- obtuse
- obstruct
- obstruction
- obstruction
- Odyssey
- obvious
- occurrence
- occupation
- octogenarian
- odds
- occult
- ode
- odious
- odometer
- offence(offense)
- offbeat
- offend
- offensive
- offensive
- offensive
- offhand
- onset
- officious
- off-key
- offset
- offish
- offish
- offspring
- offstage
- ointment
- omelet
- olfaction
- ominous
- omit
- omnipotent
- omniscient
- opalescence
- opaque
- operative
- operative
- operetta
- opinionated
- opponent
- opportune
- oppose
- oppress
- opprobrious
- optimism
- optimum
- optional
- opulent
- oration
- oratorio
- orchard
- orchestra
- ordain
- ordeal
- ordinance
- ore
- originality
- organism
- orient
- original
- ornithology
- orthodontics
- orthodox
- oscillate
- osmosis
- osseous
- ossify
- ostensible
- ostentation
- ostracism
- ostracize
- ostrich
- other-directed
- oust
- outgoing
- outgrowth
- outline
- outlet
- outmaneuver
- outmoded
- outset
- outrage
- outshine
- outskirts
- outspoken
- outstrip
- ovation
- overbearing
- overdue
- overexposure
- overlap
- overflow
- overhaul
- overlook
- overpowering
- overriding
- override
- overreach
- oversee
- overshadow
- overstate
- overt
- overture
- overthrow
- overturn
- overwrought
- overwhelm
- odoriferous
- oddments
- owl
- ocular
- observance
- oblation
- oatmeal
- oar
- obtrude
- oligarch
- omnivorous
- opiate
- ooze
- oracular
- orifice
- orotund
- outfox
- overweening
- oversight
- oleaginous
- opulence
- ornery
- oven