

1.a while back 一段时间,不久之前
She stopped working with cops a
while back.
她停止和警察合作已经有一段时间了。
2.a white elephant 累赘的东西,无价值的东西
The car is a white elephant for me.
这辆小汽车对我来说是无用之物。
3.be attached to 喜爱的,依恋的
The children are very attached to their grandparents.
孩子们非常依恋他们的祖父母。
4.behind the time (s) 落后于时代,过时
Jone's store is behind the time.
琼斯的店已过时。
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5.change for the worse 向坏的方面变化
The doctor said the girl had taken a change for the worse and wasseriously ill.
医生说这女孩情况恶化,病已很严重。
6.chase the rainbows 做白日梦,想入非非
Let’s stop chasing the rainbows.
我们不要想入非非了。
7.detrimental to (sth. / sb.) 有害于...
Their decision could be detrimental to the future of the company.
他们的决定可能会对公司的未来产生不利影响。
8.dispense with sb. / sth. 省掉;使成为不必要
They've had to dispense with a lot of luxuries since Mike lost his job.
由于迈克丢了工作,他们不得不与奢侈生活告别。
9.evolve into 演化成,逐步发展成
The company has evolved over the years into a multi-million dollar organization.
该公司在数年内逐步发展成为一个拥有数百万美元资产的大企业。
10.expose to 暴露;使遭受
It is feared that people living near the power station may have been exposed to radiation.
人们担心居住在发电站附近的居民可能已受到辐射。
11.a change of pace 改变步调;换口味
You can't do these chemistry experiments all day long. You certainly need a change of pace.
12.a far cry from 相距甚远
The published book is a far cry from the early manu.
13.and how 的确
A:She's a good dancer.
B:And how.
14.a matter of time 时间问题
It is only a matter of time.
15.a phone call away 一个电话之远(愿意过来帮忙)
If you need my help, do let me know. Just remember I am a phone call away.
16.a while back 不久以前
Well, I listened to that CD you lent me a while back.
17.all along 一直
I knew it all along.
18.anything but 绝对不
I was anything but happy about going.
19.account for 解释
How do you account for it?
20.after all 毕竟;终究
A:I've just seen the X-rays and your teeth look just fine.
B:I see. Then there is nothing to worry about after all.
21.allergic to 对……过敏
Oh man! Something in this room is making my eyes itch. I must be allergic to something.
22.at sb's service 愿为某人服务
I am at your service at any time.
23.around the clock 24小时不停
Martha studied around the clock for management exam.
24.as far as I know 就我所知
But as far as I know, he once won the world champion at the Olympic Games.
25.at home with 对……很熟悉
She is at home with problems like this.
26.back out 退出
A:Wasn't Bert supposed to sing tonight?
B:Yes, but he backed out at last minute.
27.be cut out for 适合于,有做某事物的天赋
She is cut out for a dancer.
28.be absorbed in 全神贯注于某事物
She has been absorbed in a horrorfiction. I can't tear her away.
29.be addicted to 对某事物上瘾
She has been addicted to drugs for years.
30.be attached to 对某事物有感情
A:I'm amazed that you are still driving that old car of yours. I thought you would have gotten rid of it years ago.
B:It runs well and I've actually been quite attached to it.
31.a couple of 两三个,几个
Although he thought of the key idea in 1951, the first maser was not completed until a couple of years later.
32.account for 解释
Variations of clay composition and the temperatures at which they are fired account for the differences in texture and appearance.
33.adapt to 使适应于
They have been able to adapt to ecological changes.
34.adorn with sth 用…装饰
Some pots were adorned with incised or stamped decorations.
35.appeal to 吸引
Publishing literature consisting of exciting stories that would appeal to both children and adults
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36.apply to 适用于
Ethological theory began to be applied to research on children in the 1960’s.
37.at best 充其量,最多
Hunting is at best a precarious way of procuring food, even when the diet is supplemented with seeds and fruits.
38.at intervals 相隔一定距离
However, at intervals of 10 to 100 years, these glaciers move forward up to 100 times faster than usual.
39.at the expense of sth 在损害…的情况下
A multitude of microorganisms make their livings directly at the expense of other creatures.
40.at the height of sth 在…最鼎盛时期
The violin had reached the height of its popularity by the middle of the eighteenth century.
41.back and forth 来回地
They then spiral back and forth between the Earth's magnetic poles very rapidly.
42.be absent from 缺席,不在
Lacking the right to vote and absent from the seats of power, women line were not considered an important force in history.
43.be capable of 能…的
Many animals are capable of using objects in the natural environment as rudimentary tools.
44.be characterized by 以…为特征
The nervous system of vertebrates is characterized by a hollow, dorsal nerve cord that ends in the head region as an enlargement, the brain.
45.be composed of 由…组成
Ocean life is primarily composed of plants.
46.be concerned with 与某事物有关
Ethnology is concerned with the study of adaptive, or survival, value of behavior and its Evolutionary history.
47.be distinct from 与…不同
Jupiter and the other giant planets are of a low-density type quite distinct from the terrestrial planets
48.be essential to 对…不可缺少
Public performance is essential to verbal art.
49.be exposed to 使接触,使遭受
Body contact reduces the surface area exposed to the cold air.
50.be far from 离…很远,根本不是
But far from being random, molt is controlled by strong evolutionary forces that have established an optimal time and duration.
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