我对那位老专家广博的学识感到很惊讶，他的专业知识对我们帮助很大。

I quite wonder at the old expert's wide range of knowledge, and his professional learning has been of great use to us.

youdao

他们在各自选定的专业中都是专家。

All of them are experts in their chosen field.

《牛津词典》

远程医疗还可以为医疗专家难以到达的地区提供专业护理。

Telemedicine also allows for better care in places where medical expertise is hard to come by.

youdao

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