Prf
n. pulse-repetition frequency的简 写
🗣️ 情景例句
Sorry, Dad.
抱歉， 爸爸。
He who avoids temptation avoids the sin.
避诱惑，免罪恶。
Notices forbidding the open-air drying of clothes, or the use of water points for car washing,
禁止露天晒衣服、禁止用水龙头冲洗汽车的布告