Ethylethanolamine
[机] 乙基乙醇氨
🗣️ 情景例句
No. Please endorse the check at the back.
不会的。请在支票的背面签名。
What's the capital of your country?
贵国首都是哪儿？
None of us is afraid of difficulties.
我们当中没有一个人害怕困难。