volume/ˋvɑljəm; ˈvɒljuːm/n 1 [U] the amount of sound produced by a television, radio etc 音量: turn the volume up/down Can you turn down the volume on the TV? 你把电视机的音量关小点好吗?2 [C,U] the total amount of something 量﹐总量: +of an increase in the volume of traffic 交通流量的增加3 [U] the amount of space that an object contains or that a substance fills 容积﹔体积: +of an instrument for measuring the volume of a gas 测量气体体积的仪器4 [C] a book, especially one that is part of a series of books〔尤指一套书的〕一卷﹐一册: a 12-volume set of poetry 一套 12 册的诗集