挑战的高级词汇英文怎么说

高级词汇是指那些难以理解、使用或掌握的词汇，它们通常在学术、专业或特定领域内使用。

这些词汇可能来自拉丁语、希腊语或其他外来语言，或者是英语中的罕见或少用的单词。它们可能有着抽象的意义或复杂的构成，需要专门的知识或背景知识才能理解。

下面是一些例句：

The professor used a lot of arcane vocabulary in his lecture, making it difficult for students to follow. (教授在讲课中使用了许多深奥的词汇，使学生们难以理解。)
My colleague has a vast knowledge of technical terminology, which makes it easy for him to communicate with other engineers. (我的同事掌握了丰富的技术术语，这使他能够轻松地与其他工程师沟通。)
The law student struggled to understand the legal jargon in the contract. (法学生很难理解合同中的法律术语。)
The poet used a lot of allusions and metaphors in her work, making it challenging for readers to fully grasp the meaning. (诗人在她的作品中使用了许多暗示和隐喻，使读者很难充分理解其意义。)