run down
 順著…流下;停止,耗盡,使精疲力竭;誹謗,說…壞話;撞倒,詆毀,破舊的


 run down
      v 1: trace; "We are running down a few tips" [syn: check out]
      2: move downward; "The water ran down"
      3: injure or kill by running over, as with a vehicle [syn: {run
         over]
      4: use up all one's strength and energy and stop working; "At
         the end of the march, I pooped out" [syn: poop out, {peter
         out, run out, conk out]
      5: examine hastily; "She scanned the newspaper headlines while
         waiting for the taxi" [syn: scan, skim, rake, {glance
         over]
      6: deplete; "exhaust one's savings"; "We quickly played out our
         strength" [syn: exhaust, play out, sap, tire]
      7: pursue until captured; "They ran down the fugitive"