run down

phrasal verb

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run down

to lose power or stop working耗尽能量；停止工作
- The battery has run down.电池没电了。
to gradually stop functioning or become smaller in size or number逐渐失去作用；萎缩；衰减
- British manufacturing industry has been running down for years.英国的制造业多年来一直在萎缩。
related noun rundown

run something down

to make something lose power or stop working使耗尽能量；使停止工作
- If you leave your headlights on you'll soon run down the battery.如果你让车头灯一直亮着，很快就会把电池耗尽。
to make something gradually stop functioning or become smaller in size or number使逐渐失去作用；使萎缩；使衰减
- The company is running down its sales force.公司正在削减销售人员。
related noun rundown

run somebody/something down

(of a vehicle or its driver车辆或驾驶者) to hit somebody/something and knock them/it to the ground把…撞倒
to criticize somebody/something in an unkind way恶意批评；说…的坏话；贬低
- He's always running her down in front of other people.他总是在别人面前说她的坏话。
to find somebody/something after a search（经过搜寻后）找到

run-down

adjective

/ˌrʌn ˈdaʊn/

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(of a building or place建筑物或地方) in very bad condition; that has not been taken care of破败的；失修的 synonym neglected
- run-down inner-city areas破败不堪的内城区
- a rather run-down part of town镇上相当破败的地区
Topics Buildingsc2
(of a business, etc.商业机构等) not as busy or as active as it used to be衰败的；不景气的
- run-down transport services不景气的交通运输业
[not before noun] (of a person人) tired or slightly ill, especially from working hard疲惫；略感不适
- to be run-down疲惫不堪
- She got very run-down working such long hours.这么长时间的工作让她筋疲力尽。
Topics Illnessc2