Un examen de 北极光
/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 positions with buttons, and usually worn over other clothes科学家指出，极光是环绕木星的磁轴（magnetic axis），而这些烟雾，是环绕着木星的旋转轴（rotation axis），是在