大学英语PETS公共英语三级大纲单词大全
- obey
- object
- objective
- obligation
- oblige
- observation
- observe
- obtain
- obvious
- occasion
- occupation
- occupy
- occur
- ocean
- October
- odd
- odds
- of
- off
- odour
- offense
- offer
- office
- officer
- official
- omit
- often
- old
- oh
- oil
- OK
- once
- on
- one
- oneself
- onion
- only
- open
- onto
- opera
- opening
- operate
- operation
- operator
- opinion
- opponent
- opposite
- opportunity
- oppose
- or
- oral
- orange
- order
- ordinary
- organ
- organization
- orderly
- organize
- orient
- origin
- original
- ornament
- other
- otherwise
- ought
- ounce
- our
- ours
- ourselves
- out
- outbreak
- outcome
- outdoor
- outer
- outline
- output
- outside
- outstanding
- over
- overcoat
- overcome
- overhear
- overlook
- overhead
- overnight
- overseas
- overtake
- overtime
- owl
- own
- owe
- owing
- owner
- ownership
- ox
- oxygen
- outdoors