expert on的用法和樣例：
例句
- I'm something of an expert on antiques.
我對古董略有研究。 - He is an expert on the world's mystical religions.
他精通世界上的神秘宗教。 - He has no pretensions to being an expert on the subject.
他並不以這方面專家自居。 - I have no pretence to be an expert on the subject.
我並不自命是這方面的專家。 - I have no pretence to being an expert on the subject.
我並不自命是這方面的專家。
