国际摩斯密码代号，因其识别性强易发送而被选用，其代号为（• • • — — — • • •）。 同时，俗词源解读为“save our ship or save our souls”，某种程度上加强了该信号的流传度。
英文词源
SOS
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. Won out over alternative suggestion C.Q.D., which is said to mean "come quickly, distress," or "CQ," general 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.
实用例句
1. The emergency signal SOS has no literal meaning.
呼救信号SOS在字面上没有任何意义.
来自《简明英汉词典》
2. The ferry did not even have time to send out an SOS.
渡船甚至连发出紧急呼救信号的时间都没有。
来自柯林斯例句
3. to send an SOS
发出紧急呼救信号
来自《权威词典》
4. She stamped out the letters'sOS'in the snow.
她用脚在雪地踩出'sOS'这三个字母.
来自辞典例句
5. BeiMac SOS is a member - based effort that lies close to the membership.