south polar distance

例句：

1. 1.The southern hemisphere is the largest continent in the world.
   南半球是世界上面积最大的大陆。
2. 2. The south pole is the furthest point from the Earth's center.
   南极点是地球中心最远的点。
3. 3. The south polar region is home to many unique wildlife species.
   南极地区是许多独特野生动物物种的家园。