单词	rust
释义	rust1 nounrust2 verb rustrust1 /rʌst/ ●○○ noun [uncountable] Word Origin WORD ORIGINrust1 Origin: Old English Examples EXAMPLES FROM OTHER DICTIONARIES Clean and oil gardening tools to prevent rust. EXAMPLES FROM THE CORPUS Facing Mathis, some of the real ring rust shone through. He even had the rust in the right places. Now first of all there was no rust on it, no barnacles. Paint protects your car from rust. Preparation consists of cleaning and degreasing: iron and steel need to be cleaned of rust. Quantity and location of rust markings is important and should not exceed ten percent of body colour. The man who opened the door had a moustache the colour of rust. 1the reddish-brown substance that forms on iron or steel when it gets wet → rusty:  There were large patches of rust on the car.2a plant disease that causes reddish-brown spots rust1 nounrust2 verb rustrust2 verb [intransitive, transitive] Verb Table VERB TABLE rust Simple Form Present they rust it rusts Past it, they rusted Present perfect they have rusted it has rusted Past perfect it, they had rusted Future it, they will rust Future perfect it, they will have rusted Continuous Form Present they are rusting it is rusting Past they were rusting it was rusting Present perfect they have been rusting it has been rusting Past perfect it, they had been rusting Future it, they will be rusting Future perfect it, they will have been rusting Examples EXAMPLES FROM OTHER DICTIONARIES Parts of the floor of the car had simply rusted away. Several of the pipes have rusted and will need to be replaced. The old typewriter had been rusting in my basement for years. EXAMPLES FROM THE CORPUS For example, the following extract comes from a discussion of rusting with a group of 5 and 6 year olds. His axe was near him, but the blade was rusted and the handle broken off short. I rust everything out and then go get new ones. Our blood tastes of rusted weapons and hammered-out coins. Say it, if it's true, and I've done with you, you may rust unprovoked for me. The right panel dangled from its upper hinge, swaying slightly, its rusted hinge producing a soft, musical squeak. The roller coaster ride amounts to a 45-second once-around, its rusting superstructure scarier to look at than to ride. They are looking at some wire wool that has rusted. Thesaurus Longman Language Activatorwhen weather/water/chemicals etc slowly damage something► wear away if the wind, rain, sea etc wears something away , it very gradually destroys its surface until there is nothing left: wear away something: · The action of the sea is constantly wearing away the cliff face.wear something away: · Environmentalists are concerned that rock climbers are wearing the crags away in some places.get worn away: · The cathedral steps were getting worn away by the feet of thousands of visitors. ► erode if water, wind, air etc erodes rock, land, soil etc, it gradually damages it over a long time by removing little pieces of it: · Caves are formed by water eroding rock.· If the river is not controlled, it will erode its banks as well as the surrounding farmland. ► corrode if a chemical corrodes something metal, it damages it and makes it gradually disappear or become weaker: · Salt corrodes metal.· If the batteries leak, they can corrode the case of your flashlight.· The pipework was badly corroded in places. ► rust/rust away if something made of iron rusts , it is gradually damaged by a chemical reaction with water and turns red-brown in colour: · The iron crosses that marked the graves had rusted badly over the years.· The underside of the car had virtually rusted away. to decay► decay if something decays , it is gradually destroyed by chemical changes - use this about dead plants or flesh, fruit or wood, or teeth: · Freezing conditions will stop most things from decaying.· Some of the apples lying on the ground had already begun to decay.· In a warm climate where flesh decays rapidly, there is more risk of infection from dead animals.· If you eat too many sweets, it'll make your teeth decay. ► rot to decay - use this especially about wood, vegetables, plants etc: · If water gets inside the woodwork, it causes it to rot.leave something to rot: · In some countries food is left to rot, while in others people are dying from hunger.rot away (=rot until it becomes extremely weak or gradually disappears): · The roof had fallen in and the floor had completely rotted away. ► decompose to decay and gradually break up - use this about dead plants or flesh: · As household refuse decomposes, it produces an explosive gas, methane.· A dead fish in the aquarium will decompose rapidly, fouling the water badly. ► go mouldy British /go moldy American if food goes mouldy , a soft green or black substance starts to grow on the surface, and it is not good to eat any more: · Throw that bread away. It's gone mouldy.· If you don't keep cheese in the fridge, it goes mouldy very quickly. ► rust if something made of iron rusts , it decays by becoming brown and rough, losing its strength, especially because it has not been protected from the damaging effects of water: · Several of the pipes have rusted and will need to be replaced.rust away (=rust until something begins to break into pieces): · Parts of the floor of the car had simply rusted away. ► corrode if metal corrodes , it decays by becoming weak and changing its colour, especially because it has not been protected from the damaging effects of chemicals: · By the time they found the wreckage of the plane, it had already started to corrode. to become covered with rust, or to make something become covered in rust:  The metal had begun to rust. The gate was old and badly rusted.rust away phrasal verb to be gradually destroyed by rust:  The blades of the swords have rusted away.
随便看	undetected undeterred undeveloped undid undies undifferentiated undignified undiluted undiminished undischarged undisclosed undiscriminating undisguised undismayed undisputed undisturbed undivided undo undoing undone undoubted undoubtedly undreamed-of undress undressed

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