Nitropropiol
[医] [邻]硝基苯丙烯酸
🗣️ 情景例句
Hello, Sally. I'm glad to meet you.
你好，萨里，很高兴见到你。
There is no time like the present.
机不可失，时不再来。
You're suffering from an allergy?
你过敏吗？