第三人称单数：trebles 现在分词：trebling 过去式：trebled
1.三倍(的),三重(的);【乐】最高音部(的);尖锐刺耳(的);高音(的)
1.(使)成为三倍,增加两倍
1.if something trebles, or if you treble it, it becomes three times bigger than it was before
1.the highest sounds in music; the part of something such as a radio or stereo that controls the higher sounds
1.something that is treble the number or amount of another thing is three times greater than it
treblestreblestrebles