形容词是exhausted，意思是筋疲力尽的，例如：

1.The exhausted climbers were rescued by helicopter.筋疲力尽的登山者由直升机营救出来。

2.Within three days they had exhausted their supply of food.他们在三天之内就把所有粮食吃光了。

3.I think we've exhausted that particular topic.我认为我们已把那个题目讨论透彻了。