polar region

例句：

1. 1. The polar region is home to many unique species of animals and plants.
   极地区域是许多独特物种的家园。
2. 2.The polar region is often referred to as the "Last Frontier" due to its extreme conditions.
   由于其极端条件，极地区域常被称为“最后边疆”。
3. 3.The polar region is a crucial area for scientific research due to its unique climate and geology.
   由于其独特的气候和地质结构，极地区域是科学研究的重要领域。