tempo作“乐曲的速度或拍子”解时复数形式为tempi；作“(运动或活动的)速度，进度”解时复数形式为tempos。

The gradation in tempo in this piece of music is very subtle.这段音乐的速度变化非常微妙。
They waltz to the tempo of the music.他们跟着音乐的节奏跳华尔兹舞。
Everywhere we could sense the swift tempo of this great industrial city.我们随处都能感觉到这个大工业城市快速的节奏。
This long strike has upset the tempo of production.这次长期罢工已经破坏了生产进度。
This story is about the tempo and the feeling of modern life.这个故事讲的是现代生活的节奏和情感。