情況：400Please respect copyright.ＰＥＮＡＮＡj6JeOg9s7P
光污染太嚴重使得我們看不到星星。400Please respect copyright.ＰＥＮＡＮＡbc7Gcx1uvm
承上：400Please respect copyright.ＰＥＮＡＮＡWAICbzum9G
白天我們看不到星星。400Please respect copyright.ＰＥＮＡＮＡD8Gca5pqTF
太陽照亮了整片大地。400Please respect copyright.ＰＥＮＡＮＡ13sjkMURy0
題：400Please respect copyright.ＰＥＮＡＮＡz8V8bBS0Z8
太陽光的光線是什麼？
