音标发音英式音标 [ˈeks.əʊ.sfɪər]美式音标 [ˈeks.oʊ.sfɪr]英式发音 美式发音 基本解释(地球的)外逸层。同根派生 the exosphere相关词英英字典剑桥英英字典 the region of the earth's atmosphere that is furthest from the earththe exosphere剑桥字典the exosphere柯林斯字典