mayday

指船舶或飞机在严重危险时通过无线电发出的国际通用遇险求救信号。

💡 记忆钩子

把它记成无线电里的红色求救按钮：一旦船或飞机遇到紧急危险，就发出“请救救我”的信号；这个固定的国际呼救词因此既指求救信号，也常指发出这类信号的呼叫。

📝 学习建议

不要把它和五月一日前后的节日名称混为一谈；这里说的是遇险求救信号。先掌握“发出求救信号”这一核心用法，再认识它在新闻或航空、航海语境中的扩展用法。

📖 中文释义

noun

core 遇险求救信号

📖 船舶或飞机处于严重危险、需要立即援助时，通过无线电发出的国际通用求救信号；也可指发出这一信号的呼叫。

💡 常见句型是 send out a Mayday 或 declare a Mayday，后面通常说明遇到的紧急情况。它多作可数名词使用，如 a Mayday，常与船舶、飞机、无线电通信等语境连用。不要用它泛指任何小麻烦或普通求助。

The pilot sent out a Mayday after losing engine power.

飞行员在发动机失去动力后发出了遇险求救信号。

maydays plural

📘 英文释义 (WordNet) 共 1 组

an internationally recognized distress signal via radiotelephone (from the French m'aider)

同义词集: mayday

🌳 词源

源自法语中表示“救救我”的呼救表达，后来成为国际通用的遇险信号。

From the distress signal mayday, from French m'aider, short for Venez m'aider! (“Come to help me!”). The term was conceived in the early 1920s by Frederick Stanley Mockford, officer-in-charge of radio at Croydon Airport in England. He had been asked to think of a word that would indicate distress and would easily be understood by all pilots and ground staff in an emergency. Since much of the air traffic at the time was between Croydon and Le Bourget Airport in Paris, he proposed the term "mayday," the phonetic equivalent of the French m'aider.

🔄 变式

maydays plural

🏷 单词标签 & 词根