She is an expert in her field.

她是该领域的专家。

This person doesn't need to be an expert like himself.

这个人不需要像他那样是专家。

I'm not an expert, but many years as a blogger have taught me a thing or two.

我不是专家，但多年的博客经验教会了我一些东西。

She is an expert in cooking.

她在烹饪方面是个高手。

She is regarded as an expert.

她被作为专家来咨询。

They hired an expert to teach.

他们聘请了一位专家来授课。

She is an expert in folk dance.

她是民间舞蹈的专家。

They sent an expert to assist us.

他们派了一名专家来协助我们。

She is an expert in electoral law.

她是选举法方面的专家。

Needham is an expert in his field.

需要汉姆是他领域的专家。