Tetracyclines
(tetracycline 的第三人称 -s形式) n. 四环素\\n[化] 四环素
🗣️ 情景例句
I had a big breakfast, so I think I'll skip lunch today.
我吃了一顿丰盛的早餐，所以打算不吃午饭了。
The student is busy studying math.
这个学生忙于研究数学。
She was born in 1966.
她生于1963年。