来自法语m’aider的英语俗化，缩写自venez m’aider,即come help me,来自venez,来，词源同come,venue,m’,我，词源同me,aider,帮助，词源同aid.后用于求救信号。
英文词源
mayday (interj.)
distress call, 1923, apparently an Englished spelling of French m'aider, shortening of venez m'aider "come help me!" But possibly a random coinage with coincidental resemblance:
"May Day" Is Airplane SOS ENGLISH aviators who use radio telephone transmitting sets on their planes, instead of telegraph sets, have been puzzling over the problem of choosing a distress call for transmission by voice. The letters SOS wouldn't do, and just plain "help!" was not liked, and so "May Day" was chosen. This was thought particularly fitting since it sounds very much like the French m'aidez, which means "help me." ["The Wireless Age," June 1923]
实用例句
1. He raced to pick up the lifejackets while his stepmother sent out a Mayday call.
他的继母发出无线电求救信号的时候，他飞跑着去拿救生衣。来自柯林斯例句
2. Mayday! Mayday! - All right now, everybody, get in crash positions!
救命! 救命! - 好的,现在, 所有人, 做好坠机姿势!来自互联网
3. Say someone Mayday are pseudo - rock, the place in the world someone would have the noise.
有人说五月天是 伪 摇滚, 这个世界有人的地方就会有喧嚣.来自互联网
4. That's the purpose of MayDay – a grassroots effort whose goal is to save our archives.
这就是灾难救援——一种草根力量,其目标就是拯救我们的档案.来自互联网
5. Mayday , mayday , mayday, rear cabin door opened in flight, explosive depression in flight deck and cabin.
