Gsb
abbr. gypsum sheathing board 石膏（夹）衬板
🗣️ 情景例句
Hello? Yes. Yes, this is she.
喂， 是的， 是的， 是我。
What is wrong?
有什么不对吗？
We ate our sandwiches and a bar of chocolate each and began to feel better.
我们俩都吃了三明治和一块巧克力才感到舒服些了。