Prfs
abbr. pulse repetition frequency stagger 脉冲重复频率跳动
🗣️ 情景例句
I need to fit a fourth operation into his schedule.
我得在他的工作表上再加第四个手术。
If the sky falls,we shall catch larks.
天垮正好抓云雀；不要杞人忧天。
Is she very unhappy without me?
没有我在她是不是很不愉快？