Kf
abbr. 知识模块（knowledge fusion）；关键帧（KeyFrame）
🗣️ 情景例句
Front... knees up, knees up.
前踢， 膝盖抬高。
Put the receiver closer to your mouth.I can't hear you.
把听筒放近你的嘴，我不能听见你的话。
That'll be very intersting. What cities are you going to visit?
那一定很有趣。你们打算参观哪些城市？