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單詞乎

distress signal

distress signal是什么意思、distress signal怎么讀

distress signal漢語翻譯

【電】 呼救信號

distress signal英語解釋

名詞 distress signal:

  1. an internationally recognized signal sent out by a ship or plane indicating that help is needed
    同義詞：distress call

distress signal例句

  1. Send out a distress signal; the ship is sinking.
    船正在下沉，發(fā)遇險信號吧。
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