高偏振星
The two systems of government are polar opposites. 这两种政体正好相反。
Most insect do not live in polar region. 大多数的昆虫不在极地地区生存。
Are there any animals in the polar circles? 南极圈和北极圈内有动物存在吗？
Located or found in one of the Polar Regions. 环极的，围绕极地的位于或发现于一个极地区域中的
In spite of vigilance a polar bear escape from the zoo. 尽管警戒很严，北极熊还是逃出了动物园。
The polar region is the habitat of the polar bear. 北极地带为北极熊的栖息地。
