We employ an expert to advise on new technology.

我们聘用了一位专家担任新技术顾问。

《牛津词典》

The good news is, you don't have to be a tree expert to take part.

好消息是，你不需要成为树木专家就能参与。

youdao

You don't need an expert to see that.

你不再需要找一个专家去见证它。

youdao

The important thing,says one expert, is to find the right tree for the right place for the right use.

VOA: special.2009.09.01

They seem to talk about it in their own terms, which to a public finance expert is, I don't know, very populist or unprofessional.

他们似乎在用各自的术语表达“风险管理，这也许对于一个财政专家来说，听起来很平民化或者很不专业。

耶鲁公开课 - 金融市场课程节选

As an expert in teaching, could you give us some advice on how best to study a language?

作为一名教育专家，关于怎样才是学习语言的最佳方式，你能给我们一些建议吗？

要继续努力 - SpeakingMax英语口语达人

The actively managed fund uses an expert to pick stocks and that is appealing.

FORBES: Why is so Little Money Invested in Index Funds

It is common for western expert to base its viewpoint and prediction on western media reports.

FORBES: U.S.-Japan Security Alliance Is Obsolete Leaving Japan Caught between China and the U.S. in a New Asian Order

The new administration recently appointed a statistical sampling expert to be the next census director.

CNN: Commentary: GOP wants a census we can count on