1.  polar circles
2.  polar circle

• 1. 极圈: polar circle | Arctic Circle | polar r circle | poolcirkel
• 2. 北极圈: Arctic Circle | arctic | Napapiiri | Gy ReMix
• 3. 南极圈: south polar circle | AC

更多释义

• 1.这就是北极圈石油之争。
  It's the race for Arctic oil.
  dict.yoduao.com
• 2.我们欢迎您来到北极圈。
  We welcome you to the Arctic Circle.
  dict.yoduao.com
• 3.在北极圈以北的德文岛上大约有一万对鸟在那里筑巢，它们被称为管鼻鹱，是一种北极海鸟。
  Some 10,000 pairs of the birds, called fulmars, a kind of Arctic seabird, make their nests on Devon Island, north of the Arctic Circle.
  dict.yoduao.com

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