(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) the need to improve facilities for leisure and recreation
(2) the increasing use of land for recreation
(3) His recreations include golf, football and shooting.

(1) He was anxious to preserve his reputation.
(2) Efforts to preserve the peace have failed.
(3) (humorous)Is he really 60? He's remarkably well preserved .

(1) Water had spilled out of the bucket onto the floor.
(2) He startled her and made her spill her drink.
(3) Thousands of gallons of crude oil were spilled into the ocean.

(1) First loosen the nuts, then take off the wheel.
(2) The rope holding the boat loosened.
(3) He loosened his grip and let her go.

(1) illegal immigrants/aliens
(2) It's illegal to drive through a red light.
(3) an illegally parked car

(1) For four days the town suffered continuous attacks.
(2) the continuous tenses
(3) He has lived and worked in France almost continuously since 1990.

(1) We sat there in dumb silence.
(2) That was a pretty dumb thing to do.
(3) If the police question you, act dumb (= pretend you do not know anything) .

(1) the maximum speed/temperature/volume
(2) For maximum effect do the exercises every day.
(3) a maximum security prison

(1) Chop the onions finely.
(2) French onion soup
(3) Will you chop an onion up for me?...

(1) The male bird is easily distinguishable from the female.
(2) The coast was barely distinguishable in the mist.
(3) She has already distinguished herself as an athlete.

(1) a trade mission to China
(2) a fact-finding mission
(3) a mercy mission to aid homeless refugees

(1) (North Amercian English) community parks/libraries (= paid for by the local town/city)
(2) The local community was shocked by the murders.
(3) health workers based in the community (= working with people in a local area)

(1) a grassy slope
(2) The town is built on a slope .
(3) the eastern slopes of the Andes

(1) The recommended retail price is £9.99.
(2) department stores and other retail outlets
(3) the retail trade

(1) substantial sums of money
(2) a substantial change
(3) substantial numbers of people support the reforms.

(1) to have a wide/limited vocabulary
(2) your active vocabulary (= the words that you use)
(3) your passive vocabulary (= the words that you understand but don't use)

(1) a brief résumé of events so far
(2) to resume talks/negotiations
(3) She resumed her career after an interval of six years.

(1) He thrust the baby into my arms and ran off.
(2) She thrust her hands deep into her pockets.
(3) She thrust past him angrily and left.

(1) Coconut is a basic ingredient for many curries.
(2) Our skin cream contains only natural ingredients.
(3) the essential ingredients for success

(1) I hadn't bargained on them being here.
(2) I didn't bargain on finding them here as well.
(3) When he agreed to answer a few questions, he got more than he bargained for (= he got more questions, or more difficult ones, than he had expected) .

(1) The students' work varies considerably in quality.
(2) The quality of the students' work varies considerably.
(3) New techniques were introduced with varying degrees of success.

(1) She closed her eyes tightly in a vain attempt to hold back the tears.
(2) I knocked loudly in the vain hope that someone might answer.
(3) She's too vain to wear glasses.

(1) Always chew food well before swallowing it.
(2) The pills should be swallowed whole.
(3) I had a sore throat and it hurt to swallow.

(1) The people are demanding a chance to participate more in government.
(2) I couldn't assent to, much less participate in such proceeding.
(3) You may well participate with us in our gains.

(1) a pair of pants
(2) a new pair of pants
(3) ski pants

(1) She spent a year in jail.
(2) He has been released from jail.
(3) a ten-year jail sentence

(1) The city is a mixture of old and new buildings.
(2) We listened to the news with a mixture of surprise and horror.
(3) cake mixture

(1) a videotaped interview
(2) She videotaped the entire trip.
(3) Rebecca gets a videotape from the Boston School of Music.

(1) I wonder who she is.
(2) I was just beginning to wonder where you were.
(3) ‘Why do you want to know? ’ ‘No particular reason. I was just wondering. ’

(1) subsequent generations
(2) subsequent events confirmed our doubts.
(3) Developments on this issue will be dealt with in a subsequent report.

(1) Her evidence suggests a different interpretation of the events.
(2) It is not possible for everyone to put their own interpretation on the law.
(3) Dreams are open to interpretation (= they can be explained in different ways) .

(1) Make sure the firm is competent to carry out the work.
(2) He's very competent in his work.
(3) The case was referred to a competent authority.

(1) What frustrates him is that there's too little money to spend on the project.
(2) The rescue attempt was frustrated by bad weather.
(3) These questions frustrated me...

(1) high levels/doses of radiation that damage cells
(2) the link between exposure to radiation and childhood cancer
(3) a radiation leak from a nuclear power station

(1) He turned a deaf ear to the rumours.
(2) He was deaf to my requests for help.
(3) Her advice fell on deaf ears.

(1) She was hot and sweat dripped into her eyes.
(2) Water was dripping down the walls.
(3) The tap was dripping.

(1) This was one aspect of her character he hadn't seen before.
(2) Events began to take on a more sinister aspect.
(3) The book aims to cover all aspects of city life.

(1) the skin's natural moisture
(2) a material that is designed to absorb/retain moisture
(3) When the soil is dry, more moisture is lost from the plant...

(1) Rye is tolerant of poor, acid soils.
(2) acid fruit
(3) an acid wit