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单词 light pollution
释义

WordReference Random House Unabridged Dictionary of American English © 2024
light pollu′tion, 
    1. Ecologyunwanted or harmful light, as from bright street lights or neon signs.
    2. Astronomyartificial illumination of the sky that sets a limit on the faintness of stars that can be observed or photographed.
    • 1970–75

Collins Concise English Dictionary © HarperCollins Publishers::
light pollution n
  1. the glow from street and domestic lighting that obscures the night sky and hinders the observation of faint stars
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