Atmosphere pollution in the Arctic region has been drawing broad attention.
北极地区的大气污染已经引起广泛关注。
The Arctic Circle is the boundary of this region of darkness.
北极圈就是这一黑暗地带的边界。
The Arctic is a polar region. It surrounds the North Pole.
北极熊是生活在北极附近白色的大熊。
The Arctic is a polar region. It surrounds the North Pole.
北极熊是生活在北极附近白色的大熊。
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