Powell was trained as a mining engineer.

VOA: special.2011.07.16

After I graduate, I'll try to get a job, you know, as a mechanical engineer.

我毕业后想先找工作，成为一名机械工程师。

就业很难 - SpeakingMax英语口语达人

At General Motors this summer, I worked as a validation engineer.

今年夏天，我在通用汽车公司，担任验证工程师。

团队的重要性 - SpeakingMax英语口语达人