exhaustion
词根词缀：
exhaust v. 用尽；抽干
ex 出 + haust 抽水 → 抽出 → 抽干
exhausted adj. 筋疲力尽的
exhaust 用尽；抽干 + ed 表形容词 →〔力气〕被抽干了 → 筋疲力尽的
exhaustion n. 筋疲力尽
exhaust的名词
exhaustive adj. 彻底的；穷尽的
exhaust的形容词
inhaust v. 吸
in 进入 + haust 抽水 → 抽进 → 吸
数据来源：新东方英语词汇速记大全
相关例句：
If this happens, exhaustion of natural resources and large-scale ecosystem collapse become increasingly likely.
如果发生这种情况，用尽的自然资源和大规模生态系统崩溃变得越来越可能。
When you reach the point of exhaustion and you wanna give up.
你们会筋疲力尽，想要放弃了。
I was tossing him simply to the exhaustion.
我被他折腾的简直要筋疲力尽了。
Some reserves are already on the brink of exhaustion and there is no hope of replacing them.
一些储备已经在用尽的边缘上并且没有替换他们的希望。广泛传播的水缺乏在点中是一个例子。
He slept the sleep of exhaustion.
他筋疲力尽睡了一大觉。
They walked me to exhaustion.
他们不停地走，可累坏了我。