Diamidogen
二胺
🗣️ 情景例句
And you promised me a surprise.
而且你答应给我一个惊喜。
Quick! Seize that child before she falls down.
快！趁还没掉下去，快抓住那孩子。
The lady who is standing behind the counter.
站在柜台后面的那位女士。