音标发音英式音标 [ˈstep ˌtʃeɪndʒ]美式音标 [ˈstep ˌtʃeɪndʒ]英式发音 美式发音 基本解释阶跃变化,步进变化(在某一局势下,比常规大得多的变化)。同根派生 step change相关词英汉例句noun [ C ]There is a step change taking place in communications technology. 通讯技术取得了较大的变化。step change更多例句英英字典剑桥英英字典 a change in a situation that is much bigger than usualstep change剑桥字典step change柯林斯字典