1.
Scientists think that the Arctic is endangered by pollution.
科学家们认为北极面临着被污染的危险。
2.
The northern and southern polar regions are different in many ways.
南北极极地在许多方面均有所不同。
3.
THE EFFECT OF THE ARCTIC SEA ICE AREA ON THE PRECIPITATION IN SUMMER OF HUBEI PROVINCE
北极海冰面积对湖北省夏季降水的影响
4.
Mark, Grace, Katie and Dan are inside Polar Bear Shores.
（马克、桂思、凯蒂和丹恩在「北极熊岸」里面。）
5.
Promoting Actively the Comprehensive Development of the Northeastern Sparsely Populated Nationalities;
积极推进东北人口较少民族全面发展
6.
aurora Polaris
【地物】极光, 北极光
7.
Polar bears live in the North Pole.
北极熊居住在北极。
8.
at or near the north pole.
在北极的或北极附近的。
9.
It extends for sixteen-million square kilometers south of the Arctic Circle.
它占据了北极圈南部的1600万平方公里的面积。
10.
The famous night-time auroras( borealis in the north, australis in the south) are the result of particles streaming in from the tail.
著名的夜间极光（面为北极光，南面为南极光）粒子从尾部流入所造成的结果。
11.
true north (north according to the earth's axis,not magnetic north)
真北（以地轴北极为正北的,非磁极之北）.
12.
When out of the water, Arctic seals are in danger of being eaten by the region's number one killer-the polar bear.
一旦离开了水，北极海豹就面临着被区域头号杀手——北极熊吃掉的危险。
13.
the regions north of the Arctic Circle centered on the North Pole.
北极圈以北的以北极为中心的区域。
14.
a line of latitude at the north or south poles.
围绕北极或南极的纬线。
15.
The South Pole is the antipode of the North Pole.
南极是北极的对蹠地。
16.
The South Pole and the North Pole areantipodes.
南极和北极是对跖地域。
17.
the stark vacancy of the arctic landscape
北极景色的极端空白
18.
true north is geographic north.
正北方是地理的北极。