If you describe someone as erudite, you mean that they have or show great academic knowledge. You can also use erudite to describe something such as a book or a style of writing.
例句
He was never dull, always erudite and well informed.他从来就不愚笨，而是一直博学多才、见多识广。...an original and highly erudite style.有独创性且非常博学的风格