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单词 distress signal
释义

WordReference Random House Unabridged Dictionary of American English © 2024
distress′ sig′nal, 
    1. a signal used, or designed to be used, by persons in peril, for the purpose of summoning aid, indicating their position, etc., as a radio code sign, aerial flare, flag hoist, or the like. Cf. distress call (def. 1).
    2. an indication, esp. a nonverbal one, that assistance, cooperation, or the like, is needed:He correctly interpreted the host's upturned eyes as a distress signal and hastily changed the subject.
    • 1870–75

Collins Concise English Dictionary © HarperCollins Publishers::
distress signal n
  1. a signal by radio, Very light, etc from a ship or other vessel in need of immediate assistance
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更新时间：2024/11/10 16:46:28