Rfwf
abbr. radio frequency waveform 射频波形
🗣️ 情景例句
My instructor thought that the beginner's class was too easy for me.
老师认为初级课程对我来说太容易了。
She was so stunned, that she couldn't speak.
她惊愕得说不出话来。
When she caught up with them, she saw that they had sat down and were going through the contents of the bag,
当她赶上他们时，发现他们已经坐了下来，正翻着包里的东西。