音標發(fā)音英式音標 [?me?.de?]美式音標 [?me?.de?]英式發(fā)音 美式發(fā)音 基本解釋(船衹、飛機發(fā)出的)無線電求救信號。同根派生 Mayday相關詞英英字典劍橋英英字典 a special radio signal sent from a ship or an aircraft when it needs helpMayday劍橋字典Mayday柯林斯字典