单词：polar region
polar region的用法和样例：
例句
- Liquid water could be thawed to form a polar ocean.液化的水可以融化成极地海洋。
- HF datalink is responsible for new polar routes.其主要目的就是为了覆盖极地地区。
- polar zone定向偶极区
- frigid zone寒带
单词：polar region 相关文章
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