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单词 run down
释义 run down
transitive verb
1.
 a. : to collide with and knock down (as with an automobile)
  < ran down an old man in the rain >
 b. : to run against and sink
  < ran a fishing boat down in the harbor >
2.
 a. : to chase until exhausted : pursue until overtaken or captured
  < finally ran the fugitive down in a blind alley >
 b. : to find by search : trace the source of
  < had quite a time running down the technical words — Tom Marvel >
 c. : to tag out (a base runner) between bases
3. : disparage
 < nags her husband and runs him down in company >
4. : to cause to diminish in value or quantity
 < run a stock down >
intransitive verb
1. : to cease to operate because of the exhaustion of motive power
 < that clock ran down hours ago >
2. : to decline in physical condition
 < his health ran down to a dangerous level >
 < the railroads have been permitted to run down alarmingly >
3. Britain, of a stream : to fall to normal level after a flood
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更新时间:2025/1/27 21:36:50