Pyridose
乙酸吡啶汞
🗣️ 情景例句
Which band of College English Test have you passed?
大学英语考试过了几级？
The knife is dirty, Would you bring me a clean one, please?
这刀子是脏的，请你拿个干净的给我。
Let me see. It's about four thirty.
我看看，大约四点半了。