1. 使精疲力竭;使疲惫不堪
    If something exhausts you, it makes you so tired, either physically or mentally, that you have no energy left.

    e.g. Don't exhaust him...
           不要把他累坏了。
    e.g. He took to walking long distances in an attempt to physically exhaust himself.
           他开始长距离步行，试图耗尽自己的体力。

2. 耗尽;用光
    If you exhaust something such as money or food, you use or finish it all.

    e.g. We have exhausted all our material resources...
           我们已经耗尽了所有的物资。
    e.g. They said that food supplies were almost exhausted.
           他们说供应的食物几乎快要吃完了。

3. 详尽地讨论;详尽无遗地论述
    If you have exhausted a subject or topic, you have talked about it so much that there is nothing more to say about it.

    e.g. She and Chantal must have exhausted the subject of babies and clothes.
           她和尚塔尔肯定已经充分讨论过宝宝和衣服的问题。

4. 排气管
    The exhaust or the exhaust pipe is the pipe which carries the gas out of the engine of a vehicle.

exhaust在线翻译

5. 尾气;废气
    Exhaust is the gas or steam that is produced when the engine of a vehicle is running.

    e.g. ...the exhaust from a car engine...
           汽车发动机排放的尾气
    e.g. The city's streets are filthy and choked with exhaust fumes.
           那座城市的街道肮脏不堪，弥漫着令人窒息的废气。