《疯狂英语单词王》汇聚了你学英语必须掌握的单词，而且内容条理，满足你学单词需求。
O:
October
n.十月
The 1st of October is National Day.
十月一日是国庆节。
of course
当然
Of course I'll still love you when you're old.
你年老的时候，我当然仍会爱你。
off
prep.离开，走开
He ran off with the money.
他携款潜逃了。
office
n.办公室
Linda works in office.
琳达在办公室工作了。
often
adv.通常，常常
It very often rains here in April.
这儿四月份常下雨。
offer
vt.提供
She offered me$10,000 for that book.
她出一万镑向我买那本书。
old
adj.老的，旧的
How old will you be on December 31 of this year?
到今年十二月三十一日时你有多大？
I bought an old mobile phone in a second-hand market.
我在二手市场买了一个旧手机。
on
prep.在，在……之上，关于
There is list of our lessons on the wall.
墙上有我们的课程表。
The country leaders exchange views on questions of common concern.
国家领导人就共同关心的问题交换了意见。
once
adv.一次，从前
She goes to see her parents in Wales once every six months.
她每半年回威尔士看父母一次。
one
pron.某个人，某物
I haven't a book. Can you lend me one?
我没有书，你能借我一本吗？
only
adv.仅仅，只
We only waited a few minutes but it seemed like hours.
我们只等了几分钟，但觉得像几个小时。
open
vt.adj.打开 开着的
The door burst open and the children rushed in.
门突然撞开了，孩子们闯了进来。
opera
n.歌剧
Have you heard Peking Opera?
你听过京剧吗？
operate
vi.& vt.手术；运转
The tractor operates on diesel oil.
拖拉机用柴油机开动。
operation
n.手术，操作
I can use a word processor but I don't understand its operation.
我能使用文字处理机，但不了解其运转机制。
opposite
n.& adj.相反，对面
His political position is opposite to ours.
他的政治立场与我们的对立。
or
conj.或者，否则
Will you have tea or coffee?
你喝茶还是喝咖啡？
Wear your coat or you'll be cold.
穿上外套否则你会觉得冷。
orange
n.橙子，橘子，
Mom,would you like some orange juice?
妈妈，你要橘子汁吗？
order
n.顺序
Please rearrange this sentence in correct order.
请按正确的顺序重新安排下面这句话。
other
adj.别的，其他的
Did you see any other films?
你看过别的电影吗？
our
pron.我们的
Our newcomer works marvelously.
我们那个新来的同志工作很出色。
ours
pron.我们的
Ours is a great Party.
我们的党是一个伟大的党。
ourselves
pron.我们自己
We try and keep ourselves informed about current trends.
我们设法随时了解形式的发展。
out
adv.在外
Open the bag and take the money out.
打开袋子拿出钱来。
outside
prep 在……外 adv.在外面
It's quite dark outside--there's no moon tonight.
外面很黑--今夜没有月亮。
over
adj.结束，完了
When we arrived,the film was over.
当我们到达时，电影结束了。
over
adv.在那边，在另一边
There is a bookstore over the street.
有一家书店在街的另一边。
over
prep.超过，多于蒙在……上，悬挂……上
He is over fifty.
他五十开外了。
own
adj.vt.自己的所有，拥有
Your life is your own affair.
你的生活是你自己的事。