a line of latitude near but to the south of the north pole; it marks the northernmost point at which the sun is visible on the northern winter solstice and the southernmost point at which the midnight sun can be seen on the northern summer solstice
例句
用作名词 (n.)
It is located just north of the Arctic Circle. 特罗姆瑟恰恰位于北极圈的北边一点儿。
Jetfire and Omega Supreme are found in the Arctic. 天火于大力金刚出北极圈。
美
