Polycycline
(=tetracycline)四环素
🔁 扩展释义
【化】 四环素
🗣️ 情景例句
You can certainly design dresses.
确实很能设计服装。
Don't forget to put stamps on the letter before you mail it.
不要忘记在寄信以前把邮票贴在信封上。
Are you a teacher?
你是教师吗？