off and on 断断续续，间歇地
常用口语句子
It rained off and on all day.
整天断断续续地下着雨。
She cried off and on all day.
她整天不时地哭。
They don't go there often， just off and on.
他们不常去那里，只是偶尔去。
常用英语短语
off chance 微小的可能性
常用口语句子
There is still an off chance that the weather will improve.
天气转好尚有一线希望。
He came on the off chance of finding me at home.
他来找我时是想到我或许有可能正在家中。
There is an off chance of finding him at home.
在家里找到他的可能性很小。
常用英语短语
off duty 下班，不上班
常用口语句子
He is off duty.
他没上班。
I was off duty yesterday.
昨天我不当班。
I am off duty today.
今天我休息。
常用英语短语
on (an/the) average 平均，通常
常用口语句子
We fail one student per year on average.
我们平均每年有一个学生不及格。
On average we receive five letters each day.
我们平均每天收到五封信。
She spends on the average two hours a day on reading.
她平均每天用两小时读书。
常用英语短语
on a large/small scale大/小规模地
常用口语句子
This district grew cotton on a large scale.
这个地区过去大量种棉花。
The board of directors made the decision to produce the car on a large scale.
董事会决定大规模生产这种汽车。
He's in business on a small scale.
他做的是小本生意。
常用英语短语
on account of 由于
常用口语句子
We delayed our departure on account of the bad weather.
由于天气不好，我们将启程的时间推迟了。
The flight was postponed on account of bad weather.
因为天气不好，航班延迟了。
Innocent people get into trouble on account of others'misfortune.
城门失火，殃及池鱼。
常用英语短语
on behalf of sb./on sb'sbehalf 代表某人；为了某人的利益
常用口语句子
On behalf of my colleagues and myself I thank you.
我代表我的同事以及我自己向你表示谢意。
Ken is not present， so I shall accept the prizeon his behalf.
肯不在场，所以我代表他领奖。
He spoke on behalf of the plan.
他为这项计划辩护。
常用英语短语
on board 在船（车/飞机）上
常用口语句子
Have the passengers gone on board yet？
旅客已经上船/上飞机了吗？
When all passengers were on board， the train pulled out of the station.
所有乘客都上车后，火车开出了车站。
You'll have to take your luggage on board.
你得把你的行李拿到车上。
常用英语短语
on business 因公
常用口语句子
I'll be away on business next week.
下星期我要出差。
I am here on business as opposed to aholiday.
我在这里是办公事而不是度假。
I will go on business either this week or nextweek.
我将在这星期或下星期出差。
常用英语短语
on condition that 如果，在……条件下
常用口语句子
You can go out on condition that you wearan overcoat.
你要穿上外衣才能出去。
I'll come on condition that John is invited too.
如果约翰也受到邀请，我就来。
You can use the bicycle on condition that you return it tomorrow.
只要你明天归还，自行车你可以拿去用。
常用英语短语
on duty 上班，值班
常用口语句子
I go on duty at 8：00 am.
我早晨8点钟上班。
Who is on duty today？
今天谁值日？
I arrive at the hospital at eight o'clock， but I don't go on duty until nine.
我八点钟就到医院了，但是九点钟我才去值班。
常用英语短语
on earth 究竟，到底
常用口语句子
What on earth do you mean？
你到底是什么意思？
Why on earth didn't you tell me the truth？
你到底为什么不跟我说实话？
Everything is all right. What on earth are you crying for？
好好儿的，你到底哭什么？
常用英语短语
on fire 起火，着火
常用口语句子
The house is on fire！
房子着火了！
He suddenly cried out that the store house was on fire.
他突然叫道仓库着火了。
The house was on fire last night and was burned down.
那幢房子昨晚着火了，被烧为平地。
常用英语短语
on foot 步行
常用口语句子
We're going on foot， not by car.
我们走着去，不坐汽车。
The cinema is not far， you can get there on foot.
电影院不远，你可以走到那去。
He goes to school not by bus， but on foot.
他去上学不是乘公共汽车，而是走路去的。
常用英语短语
on hand 在场，在手边
常用口语句子
He has too much work on hand to go picnicking with us.
他手头的工作太多了，不能跟我们去野餐。
He had to make a shift with what was onhand.
他只好用现有的东西将就应付。
There weren't enough snacks on hand for the party.
现有宴会的点心不够用。
常用英语短语
on loan 出借的，暂借的
常用口语句子
I have the book on loan from the library.
我从图书馆借来这本书。
The book I wanted was out on loan.
我想要的那本书被借出去了。
She has a piano on loan from her friend.
她正在借用朋友的钢琴。
常用英语短语
on no condition 一点也不，决不
常用口语句子
You must on no condition tell him what happened.
你决不能把发生的事情告诉他。
You must on no condition climb that high wall！
你绝不能去爬那高墙。
You must on no condition tell her the secret.
你无论如何也不要向她泄露这个秘密。
常用英语短语
on occasion(s) 有时，间或
常用口语句子
You have on occasion surprised people.
你有时使人们感到诧异。
He forgot to do homework on occasion.
有时他忘了做家庭作业。
Jason likes to go drinking on occasion.
杰森有时喜欢去喝点儿酒。
常用英语短语
on one's own 独立；独自
常用口语句子
He can be left to work on his own.
工作可交给他一个人去做。
I'm all on my own today.
今天我是独自一人。
She lives on her own.
她独自过日子。
常用英语短语
on purpose 有意地，有目的地
常用口语句子
Did he break it accidentally？
他是无意中损坏的吗？
No， on purpose.
不，是故意的。
She seems to do these things on purpose.
她似乎是有意地做这些事。
I came here on purpose to see you.
我特地来这里看你。
282常用英语短语
on sale 出售，廉价出售
常用口语句子
The new model is not on sale in the shops.
这种新款式商店尚未出售。
There are some nice apples on sale in that shop.
那家商店有些很好的苹果出售。
These gloves were on sale for only $9.
这些手套减价卖9美元。
常用英语短语
on schedule 按时间表，准时
常用口语句子
The train arrived on schedule.
火车准时到达。
I have accomplished the task on schedule.
我按时完成了任务。
Please try to sail on schedule.
请尽量按时开船。
常用英语短语
on the contrary 正相反
常用口语句子
It doesn't seem ugly to me； on the contrary，I think it's rather beautiful.
我觉得它并不丑，恰恰相反，它挺美。
It wasn't a good thing； on the contrary it was a huge mistake.
这不是一件好事，恰恰相反，这是一个巨大的错误。
It isn't hot ； on the contrary it's cold.
天气并不热，正相反，天气很冷。
常用英语短语
on the double 迅速地，很快地
常用口语句子
Hurry or we'll miss the train， on the double.
快点，否则我们会错过火车，赶快！
Send a doctor here， on the double！
派个医生来，要快！
He wants to see you in his office on the double.
他要你赶快到他办公室去。
常用英语短语
on the grounds of 根据，以……为由
常用口语句子
He refused to adopt the plan on the grounds of its high cost.
他拒绝采纳这个计划，原因是成本太高。
The cutbacks are justifiable on the grounds of cost.
削减符合成本方面的考虑。
He was dismissed on the ground of negligence.
他因渎职而遭解雇。
常用英语短语
on the one hand 一方面
常用口语句子
On the one hand， I am your manager， andon the other， I am also your friend.
一方面我是你的经理，另一方面，我也是你的.
朋友。
One one hand， I have no time； on the otherhand， I have no money.
一则，我没有时间；二则，我没有钱。
On one hand he is believable，on the otherhe is reliable， too.
一方面他是可信任的，另一方面他也是可靠的。
常用英语短语
on the point of 即将……的时刻
常用口语句子
I was on the point of going to bed when yourang.
你来电话时我正要睡觉。
I was on the point of telephoning you.
我正要打电话给你。
It started raining when I was on the point of leaving home.
我正要离开家的时候开始下雨了。
常用英语短语
on the road 在旅途中，在路上；巡回演出
常用口语句子
There were loads of cars parked on the road.
路上停了很多车子。
I have been on the road since five o'clockthis morning and I'm really tired.
我今早五点就坐汽车上路了，现在实在累。
The band has been on the road for almost amonth.
那支乐队进行巡回演出近一个月了。
常用英语短语
on the side 作为兼职/副业；私下
常用口语句子
He's a teacher but he does some journalism on the side.
他是教师，可还兼职做一些新闻工作。
He is a mechanic who sells cars on the side.
他是一个兼营买卖汽车的技工。
He's married but he has a girlfriend on the side.
他虽然已婚，但暗地里还有一个女朋友。
常用英语短语
on the spot 在场，马上
常用口语句子
The police were on the spot within a few minutes of my telephone call.
我打电话几分钟后警察就赶到了现场。
Luckily there was a doctor on the spot.
幸亏当时有位医生在场。
He was hit by a falling tree and killed on thespot.
一棵树倒下来，把他当场砸死了。
常用英语短语
on the whole 总的来说，大体上
常用口语句子
On the whole， I'm in favour of the proposal.
总的说来，我赞成这个提议。
On the whole， I thought the film was pretty good.
总的来说，我觉得这部电影很好。
My opinion is on the whole the same as yours.
我的意见大体上同你的一样。
常用英语短语
on time 准时
常用口语句子
The train arrived on time.
火车正点到达。
He will come on time even though it rains.
即使下雨，他还是会准时来的。
The alarm clock awoke me on time.
闹钟按时把我闹醒了。
常用英语短语
once (and) for all 一劳永逸地；最后一次
常用口语句子
This is not a something that can becom pleted once for all.
这不是件可以一劳永逸的事情。
I'm warning you once and for all.
我给你最后一次警告。
He's travelled a lot but he's now come back to Britain once and for all.
他游历了许多地方，现在落叶归根又回到了.
英国。
常用英语短语
once again/more 再一次
常用口语句子
I'll tell you how to do it once again.
我再告诉你一次怎么做。
Amanda is home from college once again.
阿曼达又从学校回到家中。
Let's sing it once more.
咱们再唱一次吧。
常用英语短语
once bitten，twice shy 一次被咬，下次胆小；一次上当，下次小心
常用口语句子
She certainly won't marry again； oncebitten， twice shy.
她肯定不再结婚了，所谓一朝被蛇咬，十年怕.
井绳。
Jenny certainly won't go to swimming-on cebitten， twice shy.
珍妮肯定不会再去游泳了，所谓一朝被蛇咬，十年怕井绳。
Once bitten ， twice shy， you know.
你知道的，上一次当就要学一次乖。
常用英语短语
once in a blue moon 极少，从不
常用口语句子
I see her once in a blue moon.
我难得看到她。
You get a chance like this only once in a blue moon.
这种机会你是很难得到的。
This draught occurs once in a blue moon.
这场旱灾是百年不遇的。
常用英语短语
once in while 有时，间或，偶尔
常用口语句子
Once in a while we go to a restaurant but usually we eat at home.
我们偶尔下馆子，但一般都在家吃。
He went to see them once in a while.
他有时去探望他们。
She likes to hit the bottle once in a while.
她喜欢偶尔喝得酩酊大醉。
常用英语短语
once or twice 一两次
常用口语句子
I don't know the place well. I've only been there once or twice.
我对那地方不大熟悉，只去过一两次。
She referred to it once or twice.
这一点她提到了一两次。
I was absent once or twice.
我曾缺席一两次。
常用英语短语
once upon a time 从前
常用口语句子
Once upon a time there was a beautiful princess.
从前有个美丽的公主。
We were once upon a time in love.
我们曾经相爱。
He went to America once upon a time.
他从前去过美国。
常用英语短语
one another 相互
常用口语句子
We all try and help one another.
我们都尽力互相帮助。
They helped one another.
他们互相帮助。
They don't get on well at al with one another.
他们彼此极不和。
常用英语短语
one's cup of tea 喜欢的人/物
常用口语句子
Skiing isn't really my cup of tea.
滑雪不算是我的嗜好。
A nice， quiet evening at home-that's my cup of tea.
在家享受一个宁静美好的晚上是我的爱好。
Jazz just isn't my cup of tea-I prefer classical music.
爵士乐不是我喜欢的——我更喜欢古典音乐。
常用英语短语
open to 不限制，开放的
常用口语句子
The library is open to readers on every Friday.
图书馆每周五对读者开放。
He is very modest and open to advice.
他很谦虚，乐于接受意见。
The bridge is now open to traffic.
这座桥现在可以通行。
常用英语短语
opposite to 在对面
常用口语句子
I sat opposite to him during the meal.
吃饭的时候我坐在他的对面。
The post office is opposite to the station.
邮局在车站的对面。
The result was quite opposite to what wehad expected.
结果和我们所期望的完全相反。
常用英语短语
or else 否则，要不然；（用以表示威胁）否则后果不妙
常用口语句子
Hurry up， or else you'll be late.
快点吧，要不就迟到了。
You must go to work or else you'll lose your job.
你得去上班了，要不然就要失去这份工作了。
You'd better give me that book or else！
你最好把那本书给我，不给的话！
常用英语短语
or rather 说得更确切些或加以更正
常用口语句子
We stayed at my friend's house， or rather at my friend's parents' house.
我们住在我朋友家里，说得确切些是在我朋友的父母家。
He had to walk or rather run to the office.
他得走着，应该说是跑着去上班。
I met him very late on Friday night， or rather，early on Saturday morning.
我在星期五深夜见到他，更确切地说是在星期六凌晨。
常用英语短语
or so 大约，左右
常用口语句子
There were twenty or so.
大约有二十个。
We have a doze for an hour or so.
我们睡了一个小时左右。
He will return in a week or so.
他会在一星期左右返回。
常用英语短语
other than 非，而不，不同于；除了
常用口语句子
He never speaks to me other than to ask for something.
他除了向我要东西，从不跟我说话。
She has no close friends other than him.
她除了他以外没有好朋友。
She seldom appears other than happy.
她很少有不高兴的时候。
常用英语短语
out of 不在内，在外；从……中；缺乏
常用口语句子
Fish can survive for only a short time out of water.
鱼离开水后活得时间很短。
Choose one out of the six.
从六个里挑一个。
He's been out of work for six months.
他已失业六个月了。
常用英语短语
out of breath 喘不过气来
常用口语句子
I have run myself out of breath.
我跑得上气不接下气。
I was out of breath after running for the bus.
我因为追赶公共汽车，弄得上气不接下气。
He ran so fast that he was out of breath.
他跑得太快，气都喘不过来了。
常用英语短语
out of control 失去控制
常用口语句子
The children are out of control.
管不住这些孩子了。
Inflation has got out of control.
通货膨胀已失去控制。
The plane got out of control and crashed.
飞机失去控制坠毁了。
常用英语短语
out of date 过时的；过期的
常用口语句子
Will denim jeans ever go out of date？
粗布牛仔裤会过时吗？
My passport is out of date.
我的护照已经过期了。
This kind of machine is out of date.
这种机器过时了。
常用英语短语
out of doors 在户外
常用口语句子
Sometimes we eat out of doors.
我们有时候在户外吃饭。
Don't you worry about them when they'reout of doors？
他们在室外的时候，你不担心吗？
He likes to garden because it keeps him outof doors.
他喜欢在园子里干活，因为这可以使他常在.
户外。
常用英语短语
out of order 混乱；情况反常；有故障
常用口语句子
These books are out of order.
这些书都乱了。
The phone is out of order.
电话坏了。
His objection was ruled to be out of order.
他提出的异议被裁定为有违会议规则。
常用英语短语
out of place 不适当的
常用口语句子
This joke is rather out of place.
这个玩笑开得不太得当。
Her criticisms were quite out of place.
她的批评太不相宜了。
He felt out of place in their company.
与他们在一起他感到不自在。
常用英语短语
out of practice 久不练习，荒疏
常用口语句子
If you don't play， you'll get out of practice.
不练习就会荒疏。
I haven't played tennis for years， so I'm really out of practice.
我已经多年不打网球，技术已经完全荒疏了。
I can't speak English fluently as I am out of practice.
我不能流利地说英语，因为我已荒疏了。
常用英语短语
out of sight 看不见，在视野外
常用口语句子
Out of sight， out of mind.
眼不见，心不烦。
We waved until the car was out of sight.
我们一直在挥手道别，直到汽车看不见为止。
The ship went down and at last went out of sight.
船在下沉，最后消失不见了。
常用英语短语
out of the question 毫无可能的；不值得讨论的
常用口语句子
Missing school to watch the football matchis out of the question.
为看足球比赛而旷课，那可不行。
A new bicycle is out of the question-wecan't afford it.
买新自行车的事不值得讨论，我们买不起。
We cannot go out in this weather-it is out of the question.
天气这样糟，我们不能出去--这是完全不可.
能的。
常用英语短语
out of touch 不联系，不接触；不了解最新情况的
常用口语句子
We've been out of touch with Roger for years now.
我们至今已有数年未与罗杰来往了。
James wasn't invited. We've been out of touch for years.
没有邀请詹姆斯，我们已经多年未联系了。
If they really believe in this then they must be completely out of touch.
如果他们真的相信这一点，那么他们肯定是完全与现实脱节了。
常用英语短语
over and over (again) 一再地，再三地
常用口语句子
I've warned you over and over (again) not to do that.
我已多次告诫过你不要做那件事。
Say the words over and over to yourself.
把这些话自己重复几遍吧。
Play the piece over and over until you do itright.
反复演奏这首曲子直到你演奏好为止。
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