音標(biāo)發(fā)音英式音標(biāo) [wa?]美式音標(biāo) [wa?]英式發(fā)音 美式發(fā)音 基本解釋未知（或未指明）的數(shù)（或名稱）（在兩個(gè)未知或未指明的數(shù)或名稱中，當(dāng)?shù)谝粋€(gè)用x代替時(shí)，y用來代替第二個(gè)）, （加在名詞之后構(gòu)成形容詞）像…的，似…的。同根派生 y相關(guān)詞英漢例句noun [ U ]If 2x = 3y and x = 6, then y = 4. 假設(shè)2x=3y且x=6，則y=4。The children on trial were referred to as child X and child Y. 受試兒童被稱作兒童X和兒童Y。y更多例句英英字典劍橋英英字典 used to represent the second of two numbers or names that are not known or stated, when the first is represented by "x"y劍橋字典y柯林斯字典