英语词汇cqd的起源、历史背景-英语词源词典

CQD; Mayday. One of the telegraph symbols for request- ing aid was CQD (CQ, the general call alerting other ships that a message follows, and the D standing for “danger”). But these letters, proposed after the Titanic sank in 1912, proved unsatisfactory for technical reasons and the easy-to-remember dashes and dots that coincidentally spell out SOS were retained. Mayday, not SOS, is the oral radio signal for requesting aid and probably derives from the French m’aidez, “help me.” See sos.

词汇	cqd
词源	CQD; Mayday. One of the telegraph symbols for request- ing aid was CQD (CQ, the general call alerting other ships that a message follows, and the D standing for “danger”). But these letters, proposed after the Titanic sank in 1912, proved unsatisfactory for technical reasons and the easy-to-remember dashes and dots that coincidentally spell out SOS were retained. Mayday, not SOS, is the oral radio signal for requesting aid and probably derives from the French m’aidez, “help me.” See sos.
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