(1) It described a method to design pocket electronic piano by using chip microcomputer.
(2) In a microcomputer, these are both on the microcomputer chip.
(3) But adopt the chip microcomputer error compensating system and can compensation back engagement , raising fabrication accuracy.

(1) a mail service/train/van
(2) the Royal mail
(3) Your cheque is in the mail.

(1) The following is a summary of our conclusions.
(2) a news summary
(3) a two-page summary of a government report

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

(1) an item/article of clothing
(2) protective clothing
(3) the high cost of food and clothing

(1) She piled the papers in a heap on her desk, just anyhow.
(2) ...her long legs which she displayed all anyhow getting in and out of her car.
(3) We managed to get what we wanted, anyhow.

(1) You never help me.
(2) He has never been abroad.
(3) ‘Would you vote for him? ’ ‘never. ’

(1) He taught me the fundamentals of the job.
(2) the fundamentals of modern physics
(3) a fundamental particle

(1) He had bare feet, a t-shirt and cords on.
(2) He wore a t-shirt that had been tie-dyed in bright colours.
(3) He has on a denim shirt with a t-shirt underneath.

(1) the state's eventual separation from the federation
(2) the need for a clear separation between Church and State
(3) They were reunited after a separation of more than 20 years.

(1) a debate on abortion
(2) The minister opened the debate (= was the first to speak) .
(3) The motion under debate (= being discussed) was put to a vote.

(1) It is expected that the report will suggest some major reforms.
(2) to expect a visit/call/letter from sb
(3) Are you expecting visitors?

(1) A C Milan lost the Italian Cup Final...
(2) The government lost the argument over the pace of reform...
(3) I lost my keys...

(1) insect species
(2) insect repellent (= a chemical that keeps insects away)
(3) an insect bite

(1) I've made a rough draft of the letter.
(2) This is only the first draft of my speech.
(3) the final draft (= the final version)

(1) a piece of material
(2) ‘What material is this dress made of? ’ ‘Cotton. ’
(3) building materials (= bricks, sand, glass, etc.)

(1) It's freezing in here!
(2) I'm freezing!
(3) freezing fog

(1) underground passages/caves/streams
(2) underground cables
(3) an underground resistance movement

(1) She answered in a businesslike manner .
(2) The manner in which the decision was announced was extremely regrettable.
(3) to have an aggressive/a friendly/a relaxed manner

(1) This pen is useless.
(2) He knew it was useless to protest.
(3) It's useless worrying about it.

(1) Please be polite to our guests.
(2) We were all too polite to object.
(3) I don't know how to make polite conversation .

(1) embassy officials
(2) to inform the embassy of the situation
(3) a demonstration outside the Russian embassy

(1) I'm a creature of habit (= I have a fixed and regular way of doing things) .
(2) He began to finance his habit through burglary.
(3) She's tried to give up smoking but just can't kick the habit .

(1) We couldn't agree what to do.
(2) We agreed to meet on Thursday.
(3) Do you think he'll agree to their proposal?

(1) (British English)to take a decision (= to decide)
(2) to make a decision (= to decide)
(3) We need a decision on this by next week.

(1) We were in the same class at school.
(2) She is the youngest in her class.
(3) He came top of the class .

(1) whale meat
(2) I had a whale of a time in Birmingham.
(3) I first became acquainted with him on board a whale vessel.

(1) (North Amercian English)a bounce (= increase) in popularity
(2) one bounce of the ball
(3) There's not much bounce left in these balls.

(1) Can you explain how the email system works?
(2) She explained to them what to do in an emergency.
(3) ‘It works like this, ’ she explained.

(1) an around-the-world voyage
(2) a voyage in space
(3) The Titanic sank on its maiden voyage (= first journey) .

(1) He would not be allowed to leave the country...
(2) I simply couldn't bear to leave my little girl...
(3) He left school with no qualifications...

(1) their parties are always fun.
(2) Which is their house?
(3) If anyone calls, ask for their number so I can call them back.

(1) the beauties of nature
(2) man-made substances not found in nature
(3) nature conservation

(1) He brought out a notebook and pen from his pocket.
(2) ...her reporter's notebook.
(3) ...a range of notebook computers which allows all your important information to travel safely with you.

(1) Troops have been sent to protect aid workers against attack.
(2) They huddled together to protect themselves from the wind.
(3) Each company is fighting to protect its own commercial interests.

(1) a friend of his
(2) The choice was his.
(3) He broke his leg skiing.

(1) a baby's first steps
(2) He took a step towards the door.
(3) We heard steps outside.

(1) Local resident groups have united in opposition to the plan.
(2) We will unite in fighting crime.
(3) Will they unite behind the new leader?

(1) You can obtain the product from all good chemists.
(2) Take this prescription to the chemist's.
(3) I'll get it at the chemist's.

(1) There are several species of zebra.
(2) The black and white lineslines on a zebra so it's called a'zebra crossing '.
(3) The zebra is thirsty, too.