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

(1) The exterior of the house needs painting.
(2) Beneath his confident exterior, he was desperately nervous.
(3) exterior walls/surfaces

(1) to submit an application/a claim/a complaint
(2) Completed projects must be submitted by 10 March.
(3) She refused to submit to threats.

(1) to have great artistic talent
(2) a man of many talents
(3) She showed considerable talent for getting what she wanted.

(1) He spoke fluently and without unnecessary hesitations.
(2) I have no hesitation in recommending her for the job.
(3) [不可数名词, 可数名词]She agreed without the slightest hesitation .

(1) Traffic reaches its peak between 8 and 9 in the morning.
(2) She's at the peak of her career.
(3) the peaks and troughs of married life

(1) electrical/household appliances
(2) They sell a wide range of domestic appliances ─washing machines, dishwashers and so on.
(3) These advances were the result of the intellectual appliance of science.

(1) I'm on the wagon for a while. Cleaning out my system.
(2) A wagon trundled up the road.
(3) He heaved the heavy box wagon.

(1) A new system has been devised to control traffic in the city.
(2) We devised a scheme to help him...
(3) New long-range objectives must be devised.

(1) His poems were published under the title of ‘Love and Reason ’.
(2) the title track from their latest CD (= the song with the same title as the disc)
(3) She has sung the title role in ‘Carmen ’ (= the role of Carmen in that opera ) .

(1) If the warranty is limited, the terms may entitle you to a replacement or refund.
(2) Golden parachutes entitle them to a full year's salary if they get booted out of the company.
(3) How does one entitle the queen when speaking directly to her?

(1) After a while his eyes adjusted to the dark.
(2) You'll quickly adjust yourself to student life.
(3) He smoothed his hair and adjusted his tie.

(1) the New York subway
(2) a subway station/train
(3) a downtown subway stop

(1) I turned left automatically without thinking.
(2) You will automatically get free dental treatment if you are under 18.
(3) The heating switches off automatically.

(1) The school was used as a hospital for the duration of the war.
(2) a contract of three years' duration
(3) His wounds knocked him out of combat for the duration.

(1) a romantic comedy
(2) slapstick comedy
(3) He didn't appreciate the comedy of the situation.

(1) It is difficult to assess the full extent of the damage.
(2) She was exaggerating the true extent of the problem.
(3) I was amazed at the extent of his knowledge.

(1) constant interruptions
(2) a constant stream of visitors all day
(3) Babies need constant attention.

(1) These paintings will form the nucleus of a new collection.
(2) Neutrons and protons are bound together in the nucleus of an atom.
(3) The Civic Movement could be the nucleus of a centrist party of the future.

(1) the cliff edge/top
(2) the chalk cliffs of southern England
(3) a castle perched high on the cliffs above the river

(1) blast for prison governors in judge's report
(2) The party was a blast.
(3) We had a blast at the party.

(1) crimes/acts/threats of violence
(2) He condemned the protesters' use of violence against the police.
(3) domestic violence (= between family members)

(1) He exploited his father's name to get himself a job.
(2) She realized that her youth and inexperience were being exploited.
(3) What is being done to stop employers from exploiting young people?

(1) Higher-rate deposit accounts yield good returns.
(2) The research has yielded useful information.
(3) trees that no longer yield fruit

(1) to develop a strategy for dealing with unemployment
(2) It's all part of an overall strategy to gain promotion.
(3) the government's economic strategy

(1) domestically produced goods
(2) The police were called to sort out a domestic.
(3) I'm not a very domestic sort of person.

(1) It is a purely academic question.
(2) The whole thing's academic now─we can't win anyway.
(3) You have to do well academically to get into medical school.

(1) an outstanding player/achievement/success
(2) an area of outstanding natural beauty
(3) the outstanding features of the landscape

(1) a leather jacket
(2) The soles are made of leather.
(3) a leather-bound book

(1) His muscles bunched under his shirt.
(2) Her skirt had bunched up round her waist.
(3) His forehead was bunched in a frown.

(1) We've all been guilty of selfishness at some time in our lives.
(2) the guilty party (= the person responsible for sth bad happening)
(3) He pleaded guilty to murder.

(1) professional qualifications/skills
(2) professional standards/practice
(3) an opportunity for professional development

(1) Government troops were forced to withdraw.
(2) Both powers withdrew their forces from the region.
(3) She withdrew her hand from his.

(1) skilled personnel
(2) sales/technical/medical/security/military, etc. personnel
(3) the personnel department/manager

(1) The demonstration passed off without incident .
(2) a border/diplomatic incident
(3) There was a shooting incident near here last night.

(1) The crisis had a negative effect on trade.
(2) The whole experience was definitely more positive than negative.
(3) Scientists have a fairly negative attitude to the theory.

(1) her slender figure
(2) long, slender fingers
(3) a glass with a slender stem

(1) The students were asked to interpret the poem.
(2) I didn't know whether to interpret her silence as acceptance or refusal.
(3) The data can be interpreted in many different ways.

(1) Industry: petroleum, diamonds, iron ore, phosphates, feldspar, bauxite, uranium, gold.
(2) Because of many influence factors formation of petroleum accumulations is complex in the Tazhong area.
(3) This paper introduced some applications of BT fiber, a newinorganic fiber material, in petroleum industry.

(1) As babies, we rely entirely on others for food.
(2) These days we rely heavily on computers to organize our work.
(3) The industry relies on the price of raw materials remaining low.