Formamine
甲醛胺, 六亚甲基四胺
🗣️ 情景例句
What was your graduation thesis on?
你毕业论文是什么题目？
Will you please call me back?
请你回我一个电话好吗？
May I? Thanks. Oh, this one is nicer than the other one. What's in it?
可以吗？谢谢。噢，这个比那个更好点儿。里面放的是什么？