Dimethylethanolamine
二甲乙醇胺
🗣️ 情景例句
He was ill at ease at her birthday party.
他在她的生日宴聚会中心神不宁。
Children are the parents' riches.
子女是父母的至宝。
It has belonged to our family for a long time.
我们家有这件乐器已经很久了，