Polycycline
(=tetracycline)四环素
🔁 扩展释义
【化】 四环素
🗣️ 情景例句
Oh, it must be a bill.
噢， 还不是帐单。
Would you please hold the door open for me?
可以请你为我把门拉着吗？
Make sure that all bottles are opened in your presence,
确保瓶子是当着你的面开启的，