(1) [不可数名词]the study of radioactivity
(2) a rise in the level of radioactivity
(3) The government has been storing radioactive waste at Fernald for 50 years.

(1) rat poison
(2) Where I come from, you don't rat on your friends.
(3) The government is accused of ratting on its promises to the unemployed.

(1) to look at the stars through a telescope
(2) Three episodes have been telescoped into a single programme.
(3) It's hoped that the telescope will enable scientists to see deeper into the universe than ever before.

(1) ...a two-week period of time...
(2) time passed, and still Ma did not appear...
(3) 'What time is it?' — 'Eight o'clock.'...

(1) a permanent job
(2) permanent staff
(3) They are now living together on a permanent basis.

(1) to obtain advice/information/permission
(2) I finally managed to obtain a copy of the report.
(3) To obtain the overall score, add up the totals in each column.

(1) the commitment of resources to education
(2) Achieving success at this level requires a commitment of time and energy.
(3) Women very often have to juggle work with their family commitments.

(1) a dirty brown carpet
(2) Profit is not a dirty word around here.
(3) I'd never do the dirty on my friends.

(1) in the year 1865
(2) I lost my job earlier this year.
(3) Elections take place every year.

(1) a boat to/from the mainland
(2) The Hebrides are to the west of the Scottish mainland.
(3) [只用于名词前]mainland Greece

(1) a friend of hers
(2) The choice was hers.
(3) His eyes met hers.

(1) lung cancer
(2) Women tend to worry about cancer of the breast than of the lung.
(3) When the external pressure reduces, bubbles form in the blood, leading to lung damage within minutes.

(1) Can you think of a rhyme for ‘beauty ’?
(2) children's rhymes and stories
(3) a poem written in rhyme

(1) to go sailing
(2) a sailing club
(3) There are six sailings a day.

(1) How many pupils does the school have?
(2) She now teaches only private pupils.
(3) The painting is by a pupil of Rembrandt.

(1) He stood there with his arms lifted above his head.
(2) I lifted the lid of the box and peered in.
(3) (figurative)John lifted his eyes (= looked up) from his book.

(1) Her job demands a high degree of skill.
(2) I agree with you to a certain degree .
(3) To what degree can parents be held responsible for a child's behaviour?

(1) a shuttle service between London and Edinburgh
(2) Her childhood was spent shuttling between her mother and father.
(3) A bus shuttles passengers back and forth from the station to the terminal.

(1) This animal is found in Australia, and nowhere else.
(2) There was nowhere for me to sit.
(3) ‘Where are you going this weekend? ’ ‘nowhere special. ’

(1) 'What's his name?'—'Peter.'...
(2) I don't even know if Sullivan's his real name...
(3) My mother insisted on naming me Horace.

(1) Indicate whether the following statements are true or false .
(2) Is it true she's leaving?
(3) All the rumours turned out to be true.

(1) her quiet voice
(2) a quieter, more efficient engine
(3) Could you keep the kids quiet while I'm on the phone?

(1) a mountainous region/terrain
(2) mountainous waves
(3) ...the mountainous region of Campania.

(1) She never took a taxi, even though she could afford to.
(2) He couldn't afford the money to go on the trip.
(3) (formal)They could ill afford to lose any more staff.

(1) He had seldom seen a child with so much talent.
(2) She seldom, if ever, goes to the theatre.
(3) They seldom watch television these days.

(1) The programme attracted millions of viewers.
(2) Some of her art is intended to shock the viewer.
(3) viewers of the current political scene

(1) What was the name again?
(2) I'd like the same again (= the same amount or the same thing) .
(3) And again, we must think of the cost.

(1) We have trouble getting staff.
(2) He could make trouble for me if he wanted to.
(3) The trouble with you is you don't really want to work.

(1) The owl is sacred for many Californian indian people.
(2) We hiked the Grand Canyon, exploring indian cliff dwellings.
(3) They battled against other indian tribes, but rarely fought with the whites.

(1) last/this/next week
(2) It rained all week.
(3) What day of the week is it?

(1) This does not attach any blame to you.
(2) attach the coupon to the front of your letter.
(3) I attach a copy of my notes for your information.

(1) Under no circumstances should you lend Paul any money.
(2) Don't open the door, in any circumstances.
(3) The ship sank in mysterious circumstances.

(1) carbon fibre
(2) He inserted the paper and two carbons.
(3) Application: mainly use to shave rust and oil paint.

(1) Happiness is having enough money for the movie, popcorn and a chocolate bar.
(2) Mama : Will you buy me a popcorn?
(3) Once heated, this kind of popcorn, sold in the supermarkets, will expand.

(1) a small house/town/car/man
(2) A much smaller number of students passed than I had expected.
(3) They're having a relatively small wedding.

(1) icy air that was cold beyond belief
(2) religious/political beliefs
(3) Dissatisfaction with the government has grown beyond belief.

(1) a long-distance/cross-country/marathon , etc. runner
(2) a list of runners (= horses in a race) and riders
(3) a drug runner

(1) plain-clothes detectives from the vice squad
(2) The film ended most satisfactorily: vice punished and virtue rewarded.
(3) Greed is a terrible vice.

(1) She married a German.
(2) He never married.
(3) I guess I'm not the marrying kind (= the kind of person who wants to get married) .

(1) a jar of mustard
(2) mustard powder
(3) French/English mustard