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O开头的单词
oven
ornery
opulence
oleaginous
obsessive
oversight
otiose
overweening
outfox
orotund
orifice
oracular
opus
orchid
ooze
optimization
opiate
onus
onslaught
omnivorous
oligarch
obtrude
oar
oatmeal
obelisk
oblation
observance
occidental
ocular
olfactory
oxidize
owl
oddments
odoriferous
overwhelm
overwrought
overturn
overthrow
overture
overt
overstate
overshadow
overrule
oversee
overreach
override
overriding
overpowering
overlook
overhaul
overflow
overlap
overexposure
overdue
overdose
overbearing
ovation
outwit
outstrip
outspoken
outskirts
outshine
outrage
outset
outmoded
outmaneuver
outlandish
outlet
outline
outgrowth
outgoing
oust
otter
other-directed
ostrich
ostracize
ostracism
ostentation
ostensible
ossify
osseous
osmosis
oscillate
orthodox
orthodontics
ornithology
ornate
original
orient
organism
originality
ore
ordnance
ordinance
ordeal
ordain
orchestra
orchard
oratory
oracle
oratorio
oration
opulent
optional
optimum
optimist
optimism
opprobrious
oppress
oppose
opportune
opponent
opinionated
opine
operetta
operative
opaque
opalescence
opacity
onerous
omniscient
omnipotent
omit
omnipresent
ominous
olfaction
omelet
oligarchy
ointment
ogle
offstage
offspring
offish
offset
off-key
officious
onset
offhand
offensive
offend
offbeat
offence(offense)
odometer
odium
odious
ode
occult
odds
octogenarian
occupation
occurrence
occlude
obvious
obviate
Odyssey
obstruction
obstruct
obverse
obtuse
obtainable
obstreperous
obstinate
obstinacy
obstacle
obsolete
obsolescent
obsession
observatory
obsessed
obsess
obsequious
obscurity
obscure
obloquy
obnoxious
oblivious
obliterate
oblique
obliging
oblige
obligatory
obligation
objective
objection
obituary
obfuscate
obese
obeisance
obedient
obdurate
oath
oasis
oak
optical
opt
opposition
opposite
opportunity
opinion
opera
opening
open
one
once
only
oneself
old
on
okay
often
operate
oil
officer
official
office
offer
offence
oh
off
of
odd
October
ocean
occur
occupy
occasional
occasion
obtain
observe
object
oxygen
obey
ox
ownership
owner
own
owing
owe
overwork
overtime
overtake
oversea
overnight
overhead
overcome
outstanding
overcoat
over
output
outside
outlook
outcome
outgrow
outdoors
outbreak
out
ourselves
ours
our
ounce
ought
otherwise
other
ornament
originate
origin
organize
organization
ordinary
organ
orderly
order
orbit
orange
oral
or
option
optimistic
onion
outdoor
of course
outing
onto
out of
over there
oriental
oops
one another
on end
offering
oval
octopus
orphanage
ozone
on foot
oyster
open day
others
on the phone
overall
online
operation
on time
obviously
organized
outer space
on sale
OK
on vacation
on the right
oversleep
on display
Oxford University
Oxford
optometrist
overseas
on board
open up
on the other hand
on the one hand
out of style
Oct.
older
out of work
on purpose
ought to
Obon
or so
operator
one after another
olive
organic
observation
overboard
overhear
out of breath
offending
odourless
odour
owe to
out of respect
Oceania
outward
once more
out of order
occasionally
object to
occur to
on behalf of
outer
on the whole
opposed
obesity
on the other band
Oswald
Odysseus
outweigh
over and over again
on a farm
ouch
outdoor activity
once in a while
orally
on business
on earth
ozone layer
once upon a time
Olympic
once again
out of sight
once a week
only a little
over and over
overjoyed
on duty
on Sunday afternoon
Ouch!
Onions
one by one
over here
on holiday
one day
out of practice
out of touch
out of the question
out of place
out of doors
out of date
out of control
once for all
on the spot
on the road
on the point of
on the ground of
on the contrary
on second thoughts
on schedule
on occasion
on hand
on fire
on guard
on condition that
on one hand
on account of
on a small scale
on average
on a large scale
off and on
offense
optimize
operational
onward
odor
obedience
overwhelming
overview
overpass
overestimate
outfit
outermost
orphan
orientation
overload
outwards
ornamental
ordinarily
out of luck
omission
orator
officiate
oxide
on the threshold of
on the brink of
on the blink
on oath
on the verge of
on impulse
of the essence
obscene
out of use
out of touch with
out of the way
out of tune with
out of the ordinary
out of the blue
out of stock
out of step
out of sorts
out of season
own up
owing to
over the hill
over and above
or something
or else
out of print
out of pocket
out of line
out of joint
out of hand
out of action
out of character
other than
organise
organisation
only too
one way or another
on the part of
on the job
on the move
on the road to
on the increase
on the hour
on the horizon
on the house
on the average
on the go
on the button
on the air
on the alert
on the grounds of
on that score
on the quiet
on record
on paper
on order
once and for all
on top of
on top
on thin ice
on the trot
on the table
on the strength of
on the spur of the moment
on the side
on the shelf
on the run
off the record
off the hook
off the air
off duty
off balance
of sorts
of note
of necessity
of late
odds and ends
of a kind
of no account
on no account
observer
on loan
on line
on edge
on file
on demand
on and on
on cue
on a diet
on a scale
ordering
Oolong tea
oily
overpopulation
orbital
Oh dear
oak tree
on land
Olympic Games
out there
Only joking
overleaf
overland
on diet
openly
open an account
ornithologist
ostentatious
opalescent
objurgate
overvalued
overproduction
overdraw
overdraft
outward(s)
out-of-stock
opportunity cost
open-end
offerer
offeree
obligor
obligee
on the basis of
of itself
outpatient
on and off
organ donor
outage
out-tray
outrageous
outburst
optimal
omen
obtrusive
obsolescence
oblivion
open ended
on their way
order of magnitude
originate from
original version
on various occasions
or whatever
organic food
operational mine
over time
only that
oil refining
off course
of the day
over millennia
over the horizon
object lesson
on an equal base with
of special note
on the battlefield
on the other side
on hard times
on the bottom
of all time
on the heavy side
on the urban scene
on a daily basis
of the period
overrun
outright
outlying
outlaw
outdo
outdated
outcry
outcast
out of line with
orientate
orientate oneself
onlooker
ongoing
oncoming
on good terms with sb.
offshore
off-hand
on account to
oblong
ow
obstinately
ombudsman
over-zealously
observant
offender
organically-grown
over-industrialized
overpopulated
overbalance
ominously
oddly
originally
overalls
oil rig
overfish
oarfish
officially
overwhelmingly
overheads
oceanarium
orgy
Ottawa
opera house
one hundred
orange juice
Olympics
Oh,dear!
ovum
oversleeve
overcast
overactivity
ovary
otorhinolaryngology
otitis
osteoma
orthopedics
organelle
optics
oppression
ophthalmology
opium
oncology
officinal
offence(-se)
obstetrics
oat
oaf
overweight
on that basis
overeating
overdevelop
open the floor
oil painting
official-looking
observational
oilfield
overwhelmed
organizer
opening ceremony
Olympian
old-fashioned
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