Tetracyclines
(tetracycline 的第三人稱 -s形式) n. 四環素\\n[化] 四環素
??? 情景例句
that this interview could be an important experience for you.
這次面談是一次很好的經驗。
They must hunger in frost that will not work in heat.
少壯不努力，老大徒傷悲。
You really look sharp today.
你今天真漂亮。