octaveKK [ˋɑktɪv] /ˈɑktɪv/发音名词1八度、八度音程音乐She can sing over three octaves without straining her voice.她能唱超过三个八度,而且不会伤到嗓子。2高八度音、低八度音音乐Try playing the melody an octave higher on the piano.试著把这段旋律在钢琴上高八度弹一次。3倍频程声学The filter cuts the signal by twelve decibels per octave.这个滤波器每倍频程将讯号衰减十二分贝。4八行诗节诗学The sonnet opens with an octave and closes with six lines.这首十四行诗以八行诗节开头,最后以六行收束。用这个字练口说→