音標發(fā)音英式音標 [??d??.?n ?sa?n]美式音標 [??d??.?n ?sa?n]英式發(fā)音 美式發(fā)音 基本解釋加號（+）。同根派生 addition sign相關(guān)詞英英字典劍橋英英字典 the symbol + , used between two numbers to show that they should be added togetheraddition sign劍橋字典addition sign柯林斯字典