相关单词近義詞 distress signal 遇險信號, cry for help 求救, alarm 警報, flare 閃光, alert 警覺的, signal 信號臨近詞sot, sortie, SOSB, sosh, Soso, Sosi, Sosa, SOSS, Sosu, Sosio, Sossa, Sossi 返回 sos