音标发音英式音标 [ˈrɒk ˌsaɪ.kəl]美式音标 [ˈrɑːk ˌsaɪ.kəl]英式发音 美式发音 基本解释岩石循环,岩石周期。同根派生 the rock cycle相关词英英字典剑桥英英字典 the way that rock is broken down into pieces by erosion, then carried by wind and water until pressed together to form rock againthe rock cycle剑桥字典the rock cycle柯林斯字典