Dinitrate
二硝酸盐
🗣️ 情景例句
Please give me a wake up call at 7:30 am tomorrow.
请在明早七点半叫醒我。
At what time can we work out a deal?
我们什么时候洽谈生意？
He is in his everyday clothes.
他穿着平常的衣服。