CB /ˌsiː ˈbiː◂/ noun [uncountable]TCB (Citizens’ Band) a type of radiocommunication which people use to speak to each other over short distances, especially when driving 民用波段〔尤指用于人们驾车时近距离通话的无线电通信方式〕
CB CB /ˌsiː ˈbiː◂/ noun [uncountable] (Citizens’ Band) a type of radio communication which people use to speak to each other over short distances, especially when driving