run(sth)down
—phrasal verbwithrunverbuk/rʌn/us/rʌn/present participlerunning|past tenseran|past participlerun
(REDUCE)
UK
toreduceabusinessororganizationinsizeorimportance, or tobecomereducedin this way
削减；（使）变萎缩；（使）衰减
Thegovernmentis secretlyrunningdown thetrooplevels.政府正在暗地里缩减军队规模。
(LOSE POWER)
If amachineordevicesuch as aclockorbatteryrunsdown, itlosespower, or if yourunit down, youcausethis tohappen.
（使）耗尽能量；（使）变弱；（使）停止运转
Thesebatteriescan berechargedwhen theyrundown.这些电池电量用完时可以再充电。
You'llrunthebatterydown if youleaveyourcarlightson.你要是让车灯开着，就会把电瓶里的电耗尽。