sos
UK
SOS, S.O.S. expr: (used to call for help)
SC 船只或飞机遇险时发出的紧急求救信号
"SOS!" the stage manager cried into the walkie-talkie.
SOS, S.O.S. n: (distress call or signal)
SC 紧急求助电话，紧急求助信号 jǐn jí qiú zhù diàn huà，jǐn jí qiú zhù xìn hào
The telegraph operator sent an SOS just before the ship sank.
SOS, S.O.S. n: informal (request for help)
SC 紧急求助
When we saw that we couldn't prepare dinner by ourselves, we sent out an SOS for help.
SOS, S.O.S. n as adj: (relating to an SOS)
SC 紧急呼救的