Noun:

1. a feast day and the seven days following it

2. a musical interval of eight tones

3. a rhythmic group of eight lines of verse

octetn.[音] 八重唱；八重奏；八位位组octanen.[化]辛烷octaves八(音)度octaven八元数octaverinen.奥他维林octave note八度音octave band倍频带octave hand倍频带octave range倍频程octave device八分法Octave Lapize拉皮泽octave filter倍频程滤波器

1. Can you span an octave on the piano?
   乍能按到钢琴的八个键吗？
2. These notes are an octave apart.
   这些音相距八度.
3. Each successive noise function you add is known as an octave.
   每个你所叠加的噪声函数就是一个倍频。