exhaust/ɪg'zɔːst $ -'zɑːst/

v. use sth up or make sb completely tired

v. [T] 耗尽；使精疲力竭：The long war exhausted the rich country. 长期的战争耗尽了那个富足国家的财力。

◇She looks totally exhausted. 她看上去疲惫不堪。