音標發(fā)音英式音標 [?ef?em]美式音標 [?ef?em]英式發(fā)音 美式發(fā)音 基本解釋調(diào)頻。同根派生 FM相關(guān)詞英英字典劍橋英英字典 abbreviation for frequency modulation: a radio system for broadcasting that produces a very clear soundFM劍橋字典FM柯林斯字典