Dipin
[化] 迪平; 双吖丙啶氧膦哌嗪
🗣️ 情景例句
You'll have to ask a whole lot nicer than that I'm afraid.
恐怕你应该要问得有礼貌一点吧。
Excuse me for a moment, please.
对不起失陪一下。
You must keep it a secret. You mustn't tell anybody else.
你必须保密，谁都不能讲。