"高级词汇"的英文称为"advanced vocabulary"。这些词汇通常来自于学术、文学、技术等领域，并且在日常用语中较少使用。
例如：
"perfunctory" (敷衍的，草率的) 例句: His perfunctory attitude towards his work was obvious to everyone.
"erudite" (博学的，学识渊博的) 例句: The professor is erudite in many different fields.
"laudable" (值得赞扬的) 例句: His efforts to help the community are truly laudable.
建议多读书，接触不同领域的文章，并且记录新学到的单词，并练习使用它们。