Polycycline
(=tetracycline)四环素
🔁 扩展释义
【化】 四环素
🗣️ 情景例句
That's all right.
没关系。
It's cool this afternoon.
今天下午很凉。
Excuse me. How can I get to Bear Country?
对不起，到熊国怎么走？