音標(biāo)發(fā)音英式音標(biāo) [?m?s.?nt]美式音標(biāo) [?m?s.?nt]英式發(fā)音 美式發(fā)音 基本解釋（must not的縮略形式）。同根派生 mustn't相關(guān)詞英漢例句You mustn't worry too much about this. 你不必對(duì)此太擔(dān)心。mustn't更多例句英英字典劍橋英英字典 short form of must notmustn't劍橋字典mustn't柯林斯字典