情況：474Please respect copyright.ＰＥＮＡＮＡT4y5TuAlOP
光污染太嚴重使得我們看不到星星。474Please respect copyright.ＰＥＮＡＮＡkIZl1bNdK1
承上：474Please respect copyright.ＰＥＮＡＮＡQbG8jJdDE0
白天我們看不到星星。474Please respect copyright.ＰＥＮＡＮＡPn1TQUD8eB
太陽照亮了整片大地。474Please respect copyright.ＰＥＮＡＮＡv9ZoHWx9mb
題：474Please respect copyright.ＰＥＮＡＮＡ5hwqB7F1Q5
太陽光的光線是什麼？
