Prf
n. pulse-repetition frequency的简 写
🗣️ 情景例句
Thanks, Dad.
谢谢，爸爸。
Sloth is the key of poverty.
惰能致贫。
I don't want to know what it's been; I want to know what it is now.
我不想知道它曾经是什么；我想知道它现在是什么。