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The letters S-O-S are known around the world as a request for help.
字母S-O-S在全世界范围内被认为是请求帮助。
But when planes came along, radio communication was more common and when spoken, SS can easily be confused with the letter F S O S. What did you say?
但当飞机出现后，无线电通信变得更加普遍，在说话时，SS 很容易与字母 F S O S 混淆。你说什么？
SOS is the common name of the international Morse code distress signal.
SOS may also refer to:
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