情況：503Please respect copyright.ＰＥＮＡＮＡ8hhWewK5hy
光污染太嚴重使得我們看不到星星。503Please respect copyright.ＰＥＮＡＮＡllXIbdtdJj
承上：503Please respect copyright.ＰＥＮＡＮＡfwVbfncPnj
白天我們看不到星星。503Please respect copyright.ＰＥＮＡＮＡPqAJ9Gj1Km
太陽照亮了整片大地。503Please respect copyright.ＰＥＮＡＮＡdbKkcBYh89
題：503Please respect copyright.ＰＥＮＡＮＡTknFDacPrb
太陽光的光線是什麼？
