这个视频以30帧每秒的速度录制，看起来很流畅。

The video was recorded at 30 ___fps, so it looks very smooth.

他最喜欢的游戏类型是第一人称射击游戏。

His favorite game genre is ___FPS.

这支手枪的子弹初速约为900英尺每秒。

The bullet from this pistol travels at about 900 ___fps.