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词汇 sos
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SOS

also S.O.S., universal signal of extreme distress, 1910, from International Morse code letters chosen arbitrarily as being easy to transmit and difficult to mistake. Not an initialism (acronym) for "save our ship" or anything else. It won out over alternative suggestion C.Q.D., which is said to mean "come quickly, distress," or "CQ," the general all-stations call for alerting other ships that a message follows, and "D" for danger.

SOS is the telegraphic distress signal only; the oral equivalent is mayday. The figurative sense of "urgent appeal for help" is by 1918. As a jocular abbreviation of same old s___, attested by 1918, military.

updated on March 22, 2023

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更新时间:2025/5/1 22:35:16