8 modulate

1 [Tn] vary the strength, volume or pitch of (one´s voice) 改变(嗓音)的强弱、 大小、 高低
    the actor´s clearly modulated tones 那演员显然改变了的声调.
2 [I, Ipr] ~ (from sth) (to sth) change from one musical key to another 变调; 转调
    music that modulates frequently 频繁变调的乐曲
    to modulate from C major to A minor 从C大调变至A小调.
3 [Tn] (fml 文) adjust or moderate (sth) 调节, 调整(某事物).
4 [Tn] vary the amplitude, phase or frequency of (a radio wave) so as to convey a particular signal 调制(无线电波).