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the special clothes and equipment that the police use when they are dealing with a large violent group of people: 开始学习
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They usually wear riot gear for protection because they are often pelted with stones and bottles by enraged rioters.
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to completely stop or end something: 开始学习
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The police were called in to quell the riot.
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the activity of making certain that the laws of an area are obeyed: 开始学习
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There is an element of risk in every kind of work but it is nowhere as acutely felt as in the a law-enforcement.
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to make something certain to happen: 开始学习
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Police ensure the demonstration is peaceful.
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a small, metal object that is shot from a gun: 开始学习
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Police might have to open fire on the demonstrators using rubber bullets, or fire tear gas.
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to put handcuffs on someone: 开始学习
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We must bear in mind, however, that before putting handcuffs on them, the officer might have to get involved in a fight and what if the suspect is armed?
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(especially of soldiers or the police) to go around an area or a building to see if there is any trouble or danger: 开始学习
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The whole town is patrolled by police because of the possibility of riots.
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开始学习
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German police break up demonstration against Covid-19 restrictions
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A police officer ...... is on duty, walking around the area for which he or she is responsible. 开始学习
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The officer on the beat picks up information.
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to discover someone doing a [bad] deed at the very moment when the deed is being done. 开始学习
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They caught a car thief in the act.
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a container that is fastened to a gun, from which bullets go into the gun to be fired 开始学习
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They found a gun with an empty clip.
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driving faster than is allowed in a particular area: 开始学习
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The police gave chase to a speeding car.
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to spread across or move away over a large area, or to make something do this: 开始学习
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The police fired /used live ammunition /blank cartidges to disperse the crowd.
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a gas used by some police and armed forces to control crowds of people. It hurts the eyes and makes them produce tears. 开始学习
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They fired tear gas into the crowd.
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in danger of being damaged or destroyed: 开始学习
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The security services do put their lives in jeopardy and we owe them a debt of gratitudine for their efforts.
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full of unpleasant things such as problems or dangers: 开始学习
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This work is often fraught with risk.
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to judge or decide the amount, value, quality, or importance of something: 开始学习
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They assessed the cost of the flood damage at £2,500.
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to put something such as a plan or system in danger of being harmed or damaged: 开始学习
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She knew that by failing her finals she could jeopardize her whole future.
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to be greater or more important than something else: 开始学习
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The benefits of this treatment far outweigh any risks. Do the benefits of the work outweigh the risks?
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a situation in which laws are obeyed, and people behave in an organized and peaceful way: 开始学习
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Taxing consumption of alcohol is an issue of law and order.
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