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- The two systems of government are polar opposites. 这两种政体正好相反。
- In support of International Polar Year，theWED themeselectedfor 2007focuses on the effects thatclimatechangeishaving on polar ecosystems and communities，and the ensuing consequences aroundtheworld. 此主题作为对2007国际极地年的支持，重点集中在气候变化对极地生态系统和社会的影响以及随之接踵而至的对全球造成的各种后果。
- 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？
- polar ecosystem 极地生态系统
- 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。
- Water is the core of a healthy ecosystem. 水是维持生态系统良性循环的根本。
- The polar region is the habitat of the polar bear. 北极地带为北极熊的栖息地。
- Although they can swim, the polar bears are terrestrial animals. 北极熊虽然会游泳，但也是陆栖动物。
- In spite of vigilance a polar bear escaped from the zoo. 尽管警戒很严，北极熊还是逃出了动物园。
- Does potting plants means treasuring ecosystem? 家养花草就是爱护生态吗?
- The polar bear's habitat is the icy waters of the Arctic. 北极熊的栖息地是冰冷的北极海域。
- Love and hatred are polar feelings. 爱与恨是完全相反的感情。
- To respect Mother Nature and protect the ecosystem. 要尊重自然、保护生态。
- It was part of the knowledge ecosystem. 它是知识生态系统的一部分。
- So the Eclipse ecosystem is just on a roll. 所以Eclipse生态系在不断壮大。
- Extending across or crossing either of the Polar Regions. 横越极地任一个横越或穿过两个极地地区中的
- Research Review on Wetland Ecosystem Health. 湿地生态系统健康研究进展。
- Purifying service of ecosystem and its value. 生态系统的净化服务及其价值研究。
