Rfl
abbr. 无复发活存（Reiter-Feissinger relapse-free survival）；间苯二酚
🗣️ 情景例句
Thank you.
谢谢。
Don't worry, you only ripped the seam.
别担心，只弄破了线缝而已。
and a very firm hand must be employed in the early stages.
因此开始阶段需要有一位强有力的老手。