Diazoethane
重氮乙烷
🗣️ 情景例句
Oh, I took the liberty of ordering some breakfast for you.
噢 ，我冒昧给你们订了早餐。
She requests your presence at the conference.
她恳求你们参加会议。
How do you want your steak?
你的牛排要几分熟？