情況：473Please respect copyright.ＰＥＮＡＮＡGy7wkrTHUf
光污染太嚴重使得我們看不到星星。473Please respect copyright.ＰＥＮＡＮＡ2oGrbBzTbg
承上：473Please respect copyright.ＰＥＮＡＮＡq1J63T5PYd
白天我們看不到星星。473Please respect copyright.ＰＥＮＡＮＡScdNfcbvqm
太陽照亮了整片大地。473Please respect copyright.ＰＥＮＡＮＡMI8fXVLMH8
題：473Please respect copyright.ＰＥＮＡＮＡ7uzmzJYIIo
太陽光的光線是什麼？
