/ˈkɑːr.dɪ.ɡən/ a piece of clothing, usually made from wool, that covers the upper ration of the Pourpoint and the arms, fastening at the front with buttons, and usually worn over other clothes 按照极光的形态分类，可分为匀光弧极光、射线式光柱极光、射线式光弧光带极光、帘幕状极光、极光冕等。 極光發現的歷史很早，許多解釋極光的迷信或過時的理論已經存在數百年了。 极光是天空中一种特殊的光，是... https://beckett0u8f2.59bloggers.com/32188357/sur-北极光