She is an expert in her field.

她是该领域的专家。

She is an expert in cooking.

她在烹饪方面是个高手。

She is an expert in folk dance.

她是民间舞蹈的专家。

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。

She is a known expert in her field.

她是她领域的已知专家。

He is an expert in computer science.

他是一位计算机科学领域的专家。

He is a sales expert in our company.

他是我们公司里的销售高手。

He is an expert in audio engineering.

他是音频工程方面的专家。

Ryle is an expert in quantum physics.

莱尔是量子物理学的专家。