成人英语托福单词大全
- ooze
- obese
- obtuse
- ordain
- oversight
- obdurate
- oblivion
- obsequious
- obtrude
- obtrusive
- odious
- omnipotent
- omniscient
- opportune
- oration
- opulence
- opulent
- orator
- outburst
- of the period
- on a daily basis
- on the urban scene
- on the heavy side
- of all time
- on the part of
- on the strength of
- on the bottom
- on hard times
- on the spot
- on the other side
- on the battlefield
- of special note
- on an equal base with
- object lesson
- over the horizon
- over millennia
- of the essence
- of the day
- off course
- oil refining
- parking lot
- only that
- over time
- operational mine
- organic food
- out of place
- other than
- or whatever
- on various occasions
- original version
- originate from
- order of magnitude
- on their way
- open up
- open ended
- on the whole
- oar
- oasis
- oath
- obedience
- objective
- obligation
- obligatory
- obliging
- obliterate
- oblique
- obnoxious
- obscene
- obscure
- obsess
- observe
- obsolete
- obsolescence
- obstinate
- obstacle
- offhand
- obstruct
- occult
- odds
- odor
- offence
- offend
- offensive
- officious
- offset
- omen
- ominous
- omit
- onset
- opponent
- optical
- optimal
- optimism
- option
- orchestra
- ordeal
- orient
- orientation
- original
- originality
- originate
- oscillate
- ostensible
- ostentation
- ostracize
- oust
- outbreak
- outcome
- outfit
- outlet
- outline
- outlook
- outmoded
- output
- outrage
- outrageous
- outset
- outskirts
- outspoken
- outstanding
- ovation
- overbearing
- overdue
- overflow
- overlap
- overt
- overstate
- overtake
- overwhelm
- overwhelming