Rfwf
abbr. radio frequency waveform 射频波形
🗣️ 情景例句
They do.
是的。
Children learn to creep ere they can go.
孩子要走路，先得学爬行。
That's not allowed. Once you are in here, listen to your teacher.
那是不允许的。一旦进来了，你们要听老师的话。