Regulin
边条曲菌素
🗣️ 情景例句
I'm sorry, I really don't know.
对不起，我真的不知道。
I appreciate your helping me.
感谢你的帮助。
Oh, yes, I bought one, but I can't find it now.
噢，是，我买了票的，但现在找不见了！