Rfl
abbr. 无复发活存（Reiter-Feissinger relapse-free survival）；间苯二酚
🗣️ 情景例句
about five years ago.
大约五年前。
A bear growls.
熊在吼叫。
During my years in school, Annie sat beside me in every class.
在我求学期间，安妮每堂课都坐在我身旁。