exhausted
词根词缀：
词根
haust= to draw water 抽水
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：
Traditional slash and burn farming methods have exhausted the soil.
传统的刀耕火种农业方式耗尽了土地的肥力。
He had fallen into exhausted slumber
他累得睡着了。
The capital has been exhausted.
资金枯竭。
He's tired and exhausted, and has been advised to rest for two weeks
他精疲力竭，被建议休息两周。
I tried to stand up, but I was completely exhausted.
我企图站起来，可是已经筋疲力尽了。
Ryan was exhausted by the flight and walked off with wobbly legs to find Clark.
飞行旅程让瑞安筋疲力尽，他双腿颤抖着走出来寻找克拉克。