(1) Each atomic cluster is made up of neutrons and protons.
(2) The relative neutron sensitivity of the dosimeter for 14 Mev neutron ra ( ? ) from 0.024 to 0.027.
(3) neutron bombs are used to kill people rather than destroy buildings.

(1) to gain/get/derive satisfaction from sth
(2) a look/smile of satisfaction
(3) She looked back on her career with great satisfaction .

(1) Television is now an important forum for political debate.
(2) an Internet forum
(3) to hold an international forum on drug abuse

(1) an act/a place of worship
(2) ancestor worship
(3) morning worship (= a church service in the morning)

(1) The dealer will provide you with a courtesy car while your vehicle is being repaired.
(2) Viewers can see the stadium from the air, courtesy of a camera fastened to the plane.
(3) Please do me the courtesy of listening to what I'm saying.

(1) silver/gold jewellery
(2) She has some lovely pieces of jewellery .
(3) We are having the jewellery valued for insurance.

(1) to wag school
(2) The dog was biting, growling and wagging its tail.
(3) He wagged a disapproving finger...

(1) Mars takes longer to revolve on its axis than the earth.
(2) the vertical/horizontal axis
(3) an axis of symmetry

(1) They went into town to indulge in some serious shopping.
(2) I indulged myself with a long hot bath.
(3) The inheritance enabled him to indulge his passion for art.

(1) Rival fans hurled abuse at each other.
(2) He hurled a brick through the window.
(3) How would you handle being locked in the back of a cab while the driver hurled abuse at you?

(1) ...Niagara falls.
(2) He was elected judge in the fall of 1991...
(3) The Supreme Court will not hear the case until next fall.

(1) She was staring into space, her mouth slack.
(2) The rope suddenly went slack.
(3) slack muscles

(1) his first solo flight
(2) a solo effort
(3) a solo artist (= for example a singer who sings on their own, not as part of a group)

(1) literary criticism/theory
(2) It was Chaucer who really turned English into a literary language.
(3) a literary man

(1) The knives were bent out of shape.
(2) He bent the wire into the shape of a square.
(3) Mark the pipe where you want to bend it.

(1) One hundred million rats are killed each year by pest exterminators.
(2) That disobedient boy is a pest.
(3) The image of the fox as a pest is grossly exaggerated in anecdote and folklore.

(1) a fault in the electronics
(2) the electronics industry
(3) ...Europe's three main electronics companies.

(1) a wildlife enclosure
(2) the enclosure of common land in the seventeenth century
(3) This enclosure was so vast that the outermost wall could hardly be seen.

(1) The police decided to investigate further.
(2) My life is further complicated by having to work such long hours.
(3) Nothing could be further from the truth .

(1) a rigorous analysis
(2) The work failed to meet their rigorous standards.
(3) The country's press is rigorously controlled.

(1) There is a direct correlation between exposure to sun and skin cancer.
(2) the correlation of social power with wealth
(3) ...the correlation between smoking and disease.

(1) the angle of deflection
(2) the deflection of the missile away from its target
(3) The goal was scored with a deflection off the goalkeeper.

(1) Underground coal, iron, sulfur, aluminum and marble, granite, mineral water and so on.
(2) One cannot respond to granite with a child's anger.
(3) I am doing all the hard stuff your hero Gary granite can't do.

(1) Clint is awful smart.
(2) the awful horrors of war
(3) [不可数名词]the sheer awfulness of the situation

(1) a rasher of bacon
(2) bacon and eggs
(3) smoked/unsmoked bacon

(1) The area is under threat from the sheer number of tourists using it.
(2) We were impressed by the sheer size of the cathedral.
(3) The concert was sheer delight.

(1) My mother taught me to be thrifty.
(2) ...thrifty shoppers.
(3) Hitler lives a simple and thrifty life! Hitler is a vegetarian.

(1) The Parachute regiment could be forced to admit women.
(2) The regiment secured its position while awaiting the enemy attack.
(3) He became a trooper in the Royal Tank regiment.

(1) We sat down in the shade of the wall.
(2) The temperature can reach 40˚C in the shade .
(3) The trees provide shade for the animals in the summer.

(1) to pull/squeeze the trigger
(2) He kept his finger on the trigger.
(3) The trigger for the strike was the closure of yet another factory.

(1) The subscript O and W identify the unweathered and weathered states.
(2) In a single - species fluid, the subscript may be dropped.
(3) A double - subscript scheme will be used to identify the stresses.

(1) Early results on the photoelectric effect had not produced consistent results.
(2) This is obviously due to the Compton and photoelectric effects.
(3) photoelectric spectrophotometers give better result.

(1) olive groves
(2) an olive complexion
(3) olives look romantic on a hillside in Provence.

(1) a parking token
(2) a £20 book/record/gift token
(3) Collect six tokens for a free T-shirt.

(1) Use a sun block that filters UVA effectively.
(2) (figurative)My secretary is very good at filtering my calls (= making sure that calls that I do not want do not get through) .
(3) The doors opened and people started filtering through.

(1) He pulled out to overtake a truck.
(2) It's dangerous to overtake on a bend.
(3) Nuclear energy may overtake oil as the main fuel.

(1) Nurses often have to contend with violent or drunken patients.
(2) Three armed groups were contending for power.
(3) I would contend that the minister's thinking is flawed on this point.

(1) Her hand was just visible by the light from the sitting room.
(2) He crossed to the window of the sitting-room and parted the curtains.
(3) Tiffany revamped her sitting room with simple decorative tricks.

(1) It was a title bestowed upon him by the king.
(2) The Queen has bestowed a knighthood on him.
(3) I bestow my own attributes over liberally on him.