情況：431Please respect copyright.ＰＥＮＡＮＡ3PwGS487Hl
光污染太嚴重使得我們看不到星星。431Please respect copyright.ＰＥＮＡＮＡDe2uiGOGOZ
承上：431Please respect copyright.ＰＥＮＡＮＡOpOfN7ahzU
白天我們看不到星星。431Please respect copyright.ＰＥＮＡＮＡuWspFyKljs
太陽照亮了整片大地。431Please respect copyright.ＰＥＮＡＮＡjZKq9mkJsJ
題：431Please respect copyright.ＰＥＮＡＮＡtwF1yOifod
太陽光的光線是什麼？
