Postphragma
后悬骨
🗣️ 情景例句
I don't know. The baby-sitter says she has a stomachache,
我不知道。临时保姆说她肚子疼.
I know the boy whose father is an engineer.
我知道那个男孩的父亲是工程师。
Oh, I'm sorry to hear that.
噢，真遗憾。