Dimorpholamine
[化] 双吗啉胺
🗣️ 情景例句
If we can't tie the tie,
假如我们弄不好领结，
They must hunger in frost that will not work in heat.
少壮不努力，老大徒伤悲。
Yes, Miss Gao! How many are there?
可以，高老师，有多少呢？