Ethanediamine
[医] 乙二胺
🗣️ 情景例句
OK, I'd love to.
好，我很乐意参加。
Whose responsibility are the shipment charges?
运费由谁来负责呢？
No matter how hard I tried, it was impossible to fill this beautiful pen with ink and to this day it has never written a single world!
然而不管我如何摆弄，那枝漂亮的钢笔就是吸不进墨水来。直到今天，那枝笔连一个字也没写过！