北極圈的用法和樣例：
例句
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南極圈和北極圈內有動(dòng)物存在嗎？
Are there any animals in the polar circles? -
（我說(shuō)：“僅在前兩天俄國人發(fā)表消息說(shuō)，他們在北極圈內某個(gè)地方發(fā)現了數個(gè)巨大的鉆石礦區?！保?
I said: "Only the other day the Russians put out that they have discovered huge new diamond fields somewhere inside the Arctic Circle."
