音标发音英式音标 [ˈbʊk ˌtəʊ.kən]美式音标 [ˈbʊk ˌtoʊ.kən]英式发音 美式发音 基本解释购书券。同根派生 英汉例句noun [ C ]a £10 book token 一张10英镑的购书券英英字典剑桥英英字典 a card worth a particular amount of money that is given as a present and can only be used to buy a book