specialist

n. /ˈspeʃəlɪst/ B1

专家；专科医生

A person who has expert knowledge in a particular subject.

仙境例句

A chimney specialist came from far away to look at the foot in the Rabbit's chimney.

一位烟囱专家从远方赶来，看白兔家烟囱里的那只脚。