be/feel run-down
此义指人因劳累而精疲力竭，常与 feel、be 连用。
After weeks of overtime, she felt completely run-down.
连续加班几周后，她感到疲惫不堪。
疲惫不堪的；精疲力竭的
破旧不堪的；年久失修的；发条松了的；因使用过度而破旧不堪；破旧不堪的；衰老的。
指人
疲惫不堪的。
Tired and exhausted.
因使用过度而破旧不堪
worn and broken down by hard use
破旧不堪的；衰老的。
Decrepit.
发条松了的
having the spring unwound
发条松了的。
Having the spring unwound.
The old factory looks completely run-down after years of neglect.
这家旧工厂因多年无人照料，看起来完全破败不堪。
用法提示：run-down 作为形容词，描述建筑物因年久失修而破败的状态。
AI contextual example
After working double shifts all week, I felt run-down and exhausted.
连续加班一周后，我感到疲惫不堪。
用法提示：run-down 在此句中描述人的疲惫状态，作表语形容词。
AI contextual example
They bought a run-down house in the countryside and renovated it.
他们在乡下买了一栋破旧的房子，然后进行了翻修。
用法提示：run-down 作定语形容词，修饰 house，表示房屋的破旧状况。
AI contextual example
此义指人因劳累而精疲力竭，常与 feel、be 连用。
After weeks of overtime, she felt completely run-down.
连续加班几周后，她感到疲惫不堪。
用于从外表判断某人状态很差、很疲惫。
You look run-down — have you been sleeping enough?
你看起来疲惫不堪——最近睡够了吗？
作定语修饰房屋、街区等，指因长期使用而破旧失修。
They bought a run-down house and spent a year fixing it up.
他们买下一栋破旧不堪的房子，花了一年时间翻修。
grammar · medium
易错句子He lives in a run down house near the station.
正确表达He lives in a run-down house near the station.
run-down 作定语修饰名词时必须带连字符，构成复合形容词；分开写的 run down 是动词短语（如 run down a list“把清单从头看一遍”），不能用来修饰名词。
grammar · medium
易错句子After climbing five floors, I was really run-down.
正确表达After climbing five floors, I was really out of breath.
run-down 指长期劳累、身体虚弱的状态（如因工作或疾病而精疲力竭），不表示一时的气喘或短暂疲劳；短暂劳累应用 tired、out of breath 等。
run-down 指疲惫不堪，程度中等，常暗示因劳累或生病而状态不佳；exhausted 表示精力耗尽、极度疲劳，程度更强，常与 completely、utterly 等副词连用。
run-down 多指人显得虚弱疲惫，常作表语或定语；weary 强调因长时间做某事而疲乏或厌倦，较正式，常可接 of 表示对……感到厌倦。
run-down 可指人疲惫，也可指建筑破旧；worn out 作表语指人时强调因过度使用而精力耗尽，程度强，也可指物品磨损，但不强调建筑年久失修。
phrasal verb
noun
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