名詞 arctic circle:

1. a line of latitude near but 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

1. I said: "Only the other day the Russians put out that they have discovered huge new diamond fields somewhere inside the Arctic Circle."
   (我說：“僅在前兩天俄國(guó)人發(fā)表消息說，他們?cè)诒睒O圈內(nèi)某個(gè)地方發(fā)現(xiàn)了數(shù)個(gè)巨大的鉆石礦區(qū)。”)