exhaustion
n[U]
1 total loss of strength; extreme tiredness 筋疲力尽; 精疲力竭; 极度疲劳
They were in a state of exhaustion after climbing the mountain. 他们爬山以後筋疲力尽了.
2 (fml 文) action of using up completely 用尽; 耗尽; 枯竭
the rapid exhaustion of the earth´s natural resources 地球上自然资源的迅速枯竭.