erudite
adjective formal uk/ˈer.ʊ.daɪt/ us/ˈer.jə.daɪt/
博学的;有学问的;博大精深的
having or containing a lot of knowledge that is known by very few people
He's the author of an erudite book on Scottish history. 他写过一本博大精深的有关苏格兰历史的著作。
英汉双解词典收录81607条英汉双解翻译词条，基本涵盖了全部常用单词的读音、翻译及用法，是英语学习的有利工具。