Lof
abbr. 最低操作频率（lowest operating frequency）；力线（Line of Force）；本机振荡器滤波器（Local Oscillator Filter）；本机振荡器频率（Local Oscillator Frequency）
🗣️ 情景例句
Uh, are you going to be busy this evening?
今晚忙吗？
It's too sour.
太酸了。
Was the damage extensive?
坏得很多、很严重吗？