All through the coloratura she was accompanied by sighs, and its top note was drowned in a shout of universal joy.

在整个花腔中，她都伴随着叹息，它的前调淹没在普遍的欢乐呼喊中。

As an acoustical phenomenon, an octave is defined as the interval in which the vibrational frequency of the bottom note is half that of the top note.

作为一种声学现象，八度音阶指的是音程，其中底部音符的震动频率是顶部音符的一半。