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失事船只的幸存者每小时发出一次遇难信号。
The survivors of the shipwreck transmitted a distress signal every hour.
youdao
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失事船只的幸存者每小时发出一次遇难信号。
The survivors of the shipwrecktransmitted a distress signal every hour.
youdao
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失事船只的幸存者每小时发出一次遇难信号。
The survivors of the shipwrecktransmitted a distress signal every hour.
youdao