Ucc
[计] 万国版权公约, 通用分类系统
🗣️ 情景例句
I'll doing fine, too.
我也很好。
When is he expected to be back?
他什么时候回来？
It's a waste of time reading that book. It's rubbish.
看那本书真是浪费时间。那简直是垃圾。