Polycycline
(=tetracycline)四環素
?? 擴展釋義
【化】 四環素
??? 情景例句
I look forward to seeing you and Harry and Michelle.
我等著見 Harry和Michelle。
It is more pain to do nothing than something.
什么都不做要比做一點更不好受。
They finally found a small gold coin which was almost worthless.
但最后找到的是一枚幾乎一錢不值的小金幣。