Ucc
[计] 万国版权公约, 通用分类系统
🗣️ 情景例句
You'll meet them.
你会见到他们的。
He's a teather.
他是教师。
He built a glass wall through which he could watch what went on inside.
他建造一堵玻璃墙，透过玻璃墙他能够观察里面发生的事情。