Dspc
[医][=disaturated phosphatidyl choline]双饱和卵磷脂，双饱和磷脂酰胆碱
🗣️ 情景例句
Yes. Have the people arrived?
是的。客人来了吗
He's not in. May I take a message for him?
他不在，我能替他捎个口信吗？
Why do you keep asking me the same question?
你怎么又问我同样的问题？