Prf
n. pulse-repetition frequency的简 写
🗣️ 情景例句
She was caught in the branches of our tree.
被我们家树上的树枝夹住了。
Today we celebrate our day of independence.It's a national holiday.
今天我们庆祝我们的独立. 今天是国定假期。
There is a car race near our town every year.
在我们镇子附近每年都有一场汽车比赛。