Polycycline
(=tetracycline)四环素
🔁 扩展释义
【化】 四环素
🗣️ 情景例句
I've been trying to find
我一直在寻求
This is a desk.
这是一张桌子。
Don't you think it necessary to have a close study of the contract to avoid anything missing?
你不觉得应该仔细检查一下合同，以免遗漏什么吗？