Rff
abbr. remote fiber fluorimetry 远距离光纤荧光测定法
🗣️ 情景例句
Good night, Dad.
晚安， 爸爸。
You cannot make a crab walk straight.
江山易改，本性难移。
It is because his feet move on, but his head stays still.
这是因为他的脚动了，而他的头保持着静止。