Library structure
[计] 库结构
🧩 词语组成解析
🗣️ 情景例句
Usually a house is too expensive for the salary-earning class to buy.
通常房屋太贵，工薪阶层买不起。
In college I majored in science, What was your major?
大学时我主修自然科学，你主修什么呢？
Silicon Valley may prove a classroom for building a global business.
它很可能成为建立全球商业的一个教学场地。