![Inmostsituations,lighthelpsussee．Butnowadayshumansareus...]( "Inmostsituations,lighthelpsussee．Butnowadayshumansareus...")
- 問題詳情：Inmostsituations,lighthelpsussee．Butnowadayshumansareusingtoomuchofitsothatitisinfactakindofpollution．Whenitcomestolookingatthenightsky,toomuchlightmakesitdifficultforustowatchsomeoflife’smostwonderfulsights:stars,planetsandevengalaxies（星系）．Acc...
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