The prelude to the musical composition is very long.

这首乐曲的序曲很长。

The opera was preceded by a short overture.

这部歌剧开始前有一段简短的序曲。

The prelude was as iridescent as a prism in a morning room.

这个序曲就象间里的一块三镜一样灿烂辉。

Prelude in G Major.

G序曲。