音标发音英式音标 [ˌselfˈæk.ses]美式音标 [ˌselfˈæk.ses]英式发音 美式发音 基本解释自主學習。同根派生 英汉例句noun [ U ]self-access material 自主學習材料英英字典劍橋英英字典 a method of learning in which students use books, videos, etc. to study on their own