- of
- off
- offer
- office
- often
- oil
- old
- on
- once
- one
- only
- open
- or
- other
- our
- out
- outside
- over
- own
- o'clock
- October
- OK
- ours
- object
- orange
- order
- owner
- officer
- oneself
- operation
- overcoat
- ocean
- ourselves
考试英语初中英语中考单词单词大全〔O 〕课程包含33个英语单词词汇。
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