名詞 run-down:

1. a concluding summary (as in presenting a case before a law court)
   同義詞：summation, summing up, rundown

動詞 run-down:

1. trace
   同義詞：run down, check out
2. move downward
   同義詞：run down
3. injure or kill by running over, as with a vehicle
   同義詞：run down, run over
4. use up all one's strength and energy and stop working
   同義詞：poop out, peter out, run down, run out, conk out
5. examine hastily
   同義詞：scan, skim, rake, glance over, run down
6. deplete
   同義詞：run down, exhaust, play out, sap, tire
7. pursue until captured
   同義詞：run down

形容詞 run-down:

1. worn and broken down by hard use
   同義詞：creaky, decrepit, derelict, flea-bitten, woebegone
2. having the spring unwound