包含衣食住行高频单词，零基础入门必备
High-frequency words for daily life - essential for beginners
机场、酒店、景点场景专用单词短语
Specialized words for airport, hotel, and attractions
课堂、考试、交流相关英语词汇
English vocabulary for classroom, exams, and communication
职场办公、商务沟通专业词汇
Professional vocabulary for workplace and business communication