音标发音英式音标 [ræn.dəm ˈbreθ ˌtest]美式音标 [ræn.dəm ˈbreθ ˌtest]英式发音 美式发音 基本解释（检测司机是否酒后驾驶的）呼气酒精含量随机检查。同根派生 英英字典剑桥英英字典 a test given by the police to drivers chosen by chance, to measure the amount of alcohol the drivers have in their blood