worn from age or heavy use and no longer able to operate (of cars or machines or people)
例句
用作形容词 (adj.)
We were all knocked out at the end of the day. 一天下来，我们个个都累得精疲力竭的。
There's hope yet for bandwidth depleted networks -- and for weary network managers looking to keep their networks out of intensive care. 对于带宽已用尽的网络来说，还是有希望的，对于那些期望使其网络避免深层管理的精疲力竭的网络管理人员来说，也是有希望的。
美
[k'læpt'aʊt]
