柯林斯词典decibel /ˈdɛsɪˌbɛl/ (decibels) 1. N-COUNT A decibel is a unit of measurement which is used to indicate how loud a sound is. 分贝 Continuous exposure to sound above 80 decibels could be harmful. 持续曝露于超过80分贝的声音可能有害。 返回 decibel剑桥词典a unit for measuring the loudness of sound 分贝（衡量声音强度的单位） The typical lawn mower makes about 90 decibels of noise . 普通割草机产生的噪音约为90分贝。 返回 decibel