Vinylamine
乙撑亚胺; 乙烯胺; 二甲亚胺
🗣️ 情景例句
No ID number.
没有识别号码。
This mountain range has many high peaks and deep canyons.
这条山脉有许多高山峰和深峡谷。
My old friend, Frank Halliday, is just such a person.
我的老朋友弗兰克。哈利戴正是这样一个人。