mayday
(also Mayday), n (radio 无) international distress signal, used by ships and aircraft (船和飞行器用的)国际无线电求救信号
[attrib 作定语]
a mayday call/signal 求救呼叫[信号]. Cf 参看 SOS.
🗣️ 情景例句
Oh, thank you! Thank you!
哦, 谢谢, 谢谢 。
One of my suitcases is small,and the other one is medium size.