Dien
[化] 二亚乙基三胺; 二(2-氨基乙基)胺
🗣️ 情景例句
First, we need to more public relations activities to promote understanding.
首先，我们应该更多地做公关活动以促进了解。
I hope you can accept my offer.
我希望你能接受我的建议。
The temperature will stay above zero in the day-time, but at night it will fall below zero again.
白天气温保持在零度以上，但夜间仍会降至零下。