·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
N-COUNT If someone in a plane or ship sends out a Mayday or a Mayday message, they send out a radio message calling for help because they are in serious difficulty. (飞机或船遇险发出的)无线电呼救信号
He raced to pick up the life jackets while his stepmother sent out a Mayday call.
他的继母发出无线电求救信号，他飞跑着去拿救生衣。
The pilot gets on his radio and calls "mayday,mayday,mayday" to tell that his plane is in danger of crashing to the ground.
VOA: special.2010.04.18
which mean "help me." Frederick Stanley Mockford created the mayday call signal in the nineteen twenties.
VOA: special.2010.04.18
A listener from Venezuela sent us a question about the meaning of the expression mayday.
VOA: special.2010.04.18
应用推荐