specialize in的用法和樣例：
例句
- Many students specialize in engineering.
許多學生專攻工程學。 - I can specialize in that, too, at the University.
在威期康辛大學我可以專攻這一方面。 - He is currently engaged in dialect research.
他目前從事於方言的研究。 - I am happy to engage in espress industry.
我很樂意從事於快遞這一行。 - That doctor specializes in children's illnesses.
那位醫生專門研究兒科疾病。 - A person specializing in canon law is respectable.
對教規有專門研究的人很值得尊敬。
