(1) (British English)a right-angled triangle
(2) (North Amercian English)a right triangle
(3) Cut the sandwiches into triangles.

(1) the sophisticated pleasures of city life
(2) Mark is a smart and sophisticated young man.
(3) highly sophisticated computer systems

(1) They keep a list of people (who are) willing to work nights.
(2) I'm perfectly willing to discuss the problem.
(3) willing helpers/volunteers

(1) a baseball/cricket bat
(2) He bats very well.
(3) Who's batting first for the Orioles?

(1) We were greatly encouraged by the positive response of the public.
(2) Banks actively encourage people to borrow money.
(3) They claim that some computer games encourage violent behaviour in young children.

(1) The details of today's flights are displayed on the monitor.
(2) a PC with a 17-inch colour monitor
(3) a heart monitor

(1) a precious vase
(2) The crown was set with precious jewels─diamonds, rubies and emeralds.
(3) Clean water is a precious commodity in that part of the world.

(1) The magician vanished in a puff of smoke.
(2) My glasses seem to have vanished.
(3) He vanished without trace .

(1) A man was arrested by the police and held for questioning.
(2) Get out of the house or I'll call the police .
(3) police suspect a local gang.

(1) Air pollution in the city had reached four times the acceptable levels.
(2) The food was acceptable, but no more.
(3) Children must learn socially acceptable behaviour.

(1) a packet of biscuits/cigarettes/crisps
(2) A packet of photographs arrived with the mail.
(3) a packet of instant cocoa mix

(1) ‘Couldn't you have just said no? ’ ‘Well, hardly, (= of course not) she's my wife's sister. ’
(2) You can hardly expect her to do it for free.
(3) It's hardly the time to discuss it now.

(1) Most people walk at an average rate of 5 kilometres an hour.
(2) The number of reported crimes is increasing at an alarming rate.
(3) Figures published today show another fall in the rate of inflation.

(1) A trailer was attached to the rear of the truck.
(2) There are toilets at both front and rear of the plane.
(3) A high gate blocks the only entrance to the rear .

(1) a purple flower
(2) His face was purple with rage.
(3) [不可数名词, 可数名词]She was dressed in purple.

(1) Her article is a discussion of the methods used in research.
(2) We had a discussion with them about the differences between Britain and the US.
(3) a topic/subject for discussion

(1) floor/office/shelf, etc. space
(2) We must make good use of the available space.
(3) That desk takes up too much space .

(1) a rowing/sailing boat
(2) a fishing boat
(3) You can take a boat trip along the coast.

(1) a representative of the UN
(2) our elected representatives in government
(3) a union representative

(1) French air traffic controllers have begun a three-day strike in a dispute over pay...
(2) Staff at the hospital went on strike in protest at the incidents.
(3) ...their recognition of the workers' right to strike...

(1) a shampoo for greasy hair
(2) carpet shampoo
(3) Rinse the hair thoroughly after each shampoo.

(1) I'm cold. Turn the heating up.
(2) to feel/look cold
(3) cold hands and feet

(1) our ultimate goal/aim/objective/target
(2) We will accept ultimate responsibility for whatever happens.
(3) The ultimate decision lies with the parents.

(1) That's the best movie I've ever seen!
(2) She was one of the best tennis players of her generation.
(3) Is that your best suit?

(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) to raise/cut taxes
(2) tax increases/cuts
(3) changes in tax rates

(1) diplomatic/international/foreign relations
(2) US-Chinese relations
(3) relations with neighbouring countries are under strain at present.

(1) There's a bank right across the street.
(2) He hit him across the face.
(3) Where's the nearest bridge across the river?

(1) He chopped some wood for the fire.
(2) a plank of wood
(3) All the furniture was made of wood .

(1) Each word was freighted with anger.
(2) passenger and freight transportation services
(3) to send goods by air freight

(1) the electronic edition of ‘The Guardian ’
(2) Tonight's edition of ‘Panorama ’ looks at unemployment.
(3) The dictionary is now in its sixth edition.

(1) a highly influential book
(2) She is one of the most influential figures in local politics.
(3) The committee was influential in formulating government policy on employment.

(1) to undertake a task/project
(2) University professors both teach and undertake research .
(3) The company has announced that it will undertake a full investigation into the accident.

(1) The school will only allow this in special circumstances.
(2) Some of the officials have special privileges.
(3) There is something special about this place.

(1) He's a wily old fox.
(2) The last question foxed even our panel of experts.
(3) Enrico was too good, an old fox, cunning.

(1) He's in the first fifteen.
(2) In India, there are fifteen official languages.
(3) Six from fifteen leaves nine.

(1) The crowd had to stand behind barriers.
(2) Show your ticket at the barrier.
(3) the removal of trade barriers

(1) Scarlett looked at her in surprise for india was always so self - contained.
(2) There , in the yellow lamplight were Ashley, Aunt Pitty and india.
(3) I'll do it with pleasure ,'said india and her eyes glittered.

(1) The farmer lassoed the cow.
(2) The farmer is shearing his sheep.
(3) The farmer milks the cows twice a day.

(1) absolute power/authority
(2) an absolute ruler/monarchy (= one with no limit to their power)
(3) Although prices are falling in absolute terms , energy is still expensive.