Cfm
abbr. 阴极跟随器混频器（Cathode-Follower Mixer）
🗣️ 情景例句
I would like to send this by registered mail, please.
我想把这封信挂号寄出。
The poor are rich when they are satisfied.
贫能知足即为富。
At night, when you really wish to go to sleep, you rarely manage to do so.
到了夜晚，你真想睡了，却很难入睡。