Morpholinobiguanidine
[化] 吗啉胍; 吗啉双胍
🗣️ 情景例句
Do you want a first class, business class or economy seat?
你想要头等舱、商务舱还是经济舱？
The greatest fool is he who worries about what he cannot help.
操心无法可想的事是最大的傻瓜。
What was wrong?
有什么问题吗？