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1·He's singing an octave lower than the rest of us.

他唱的比我们其他人都低八度。《牛津词典》

2·Running up to an acid semitonal acciaccatura in both hands, the piano goes over into a sprint of octave-chords and single notes.

钢琴的两只手以半音阶短倚音向上，转变成八度和弦和单音符。

3·Her voice went down an octave.

她的嗓音下降了八度。

4·It covers about an octave.

它大约占一个倍频程。

5·Can you span an octave on the piano?

乍能按到钢琴的八个键吗？

6·It's got only six notes within the octave.

一个八度里只有六个音符。

7·The interval and the consonance of an octave.

八音度的音程和和音。

8·This is, however, true of this octave of densities .

然而，在这个八度音程宇宙中是真实的。

9·Oh. His voice dropped an octave in a disappointed grumble.

“噢。”他失望地应了一声，声音立刻低了八度。

10·Yeah, they had this thing — they hit this thing called the octave.

是的，他们有这个，他们碰到了这个叫做八度的东西。