音標(biāo)發(fā)音英式音標(biāo) [?e? ?let.?r]美式音標(biāo) [?er ?let?.?]英式發(fā)音 美式發(fā)音 基本解釋（可折曡成信封的）航空郵牋。同根派生 air letter相關(guān)詞英漢例句用作名詞 (n.)What is the postage for an air letter?寄一封航空信的郵費(fèi)要多少？I'd like to send this letter by air mail.我要寄這封航空信。air letter更多例句英英字典劍橋英英字典 a letter that is sent by aircraft, usually consisting of a single very thin sheet of paper that is folded and then stuck at the edges to form its own envelopeair letter劍橋字典air letter柯林斯字典