n.

1. 燃料燒盡；燒壞
2. 不堪疲累的
   After working three days in a row, I am totally burnout.

   接連地工作三天之後，我已經不堪疲累了。

n.

1. the reduction of a fuel or substance to nothing.
2. overheating of an electrical device or component.
3. physical or mental collapse.