Dien
[化] 二亚乙基三胺; 二(2-氨基乙基)胺
🗣️ 情景例句
My parents expect nothing but high marks.
我父母就希望我考高分。
The fire is the test of gold; adversity of strong man.
烈火试真金，困苦练壮士。
I saw it with my own eyes.
我亲眼所见。