音標發(fā)音英式音標 [?n?m.b? ?la?n]美式音標 [?n?m.b? ?la?n]英式發(fā)音 美式發(fā)音 基本解釋數(shù)軸。同根派生 number line相關(guān)詞英英字典劍橋英英字典 a drawing that represents all the numbers that exist, including those greater than and less than zero and irrational numbers such as πnumber line劍橋字典number line柯林斯字典