音標(biāo)發(fā)音英式音標(biāo) [?s?θi?.n?.sf??r]美式音標(biāo) [?s?θi?.n?.sf?r]英式發(fā)音 美式發(fā)音 基本解釋軟流圈。同根派生 the asthenosphere相關(guān)詞英英字典劍橋英英字典 the thin, almost liquid, layer under the hard rock that forms the outer layer of the earththe asthenosphere劍橋字典the asthenosphere柯林斯字典