The riff of the song lasted for 30 seconds.

这首曲子的连复段持续了30秒。

His riff on success at the meeting inspired many people.

他在会议上即兴发表的一段关于成功的话激励了许多人。

The guitarist was riffing away with great emotion.

这名吉他手充满感情地弹奏着最后的反复乐段。

Rowe does a very clever riff on the nature of prejudice.

罗发表了一段对偏见的本质十分精辟的讲话。

It's a wild riff for saxophone.

这是一段狂放的萨克斯即兴重复段。

Littered on the grass, we seemed dingy, urban riff-raff. We defiled the scene, like sardine-tins and paper bags on the seashore.

我们却好像是一堆肮脏的城市垃圾，被胡乱丢在草地上。如同海滩上的纸袋和沙丁鱼罐头盒一样败坏风景。

And also think a good riff.

还要考虑一段好的即兴。

A riff on strongly-typed.

强类型的即兴重复。