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
易混淆近义词、形近词精准辨析与用法对比
Distinguish easily confused similar words with precise usage comparisons