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- 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。
- We must maintain a firm attitude. 我们必须采取坚定的态度。
- Are there any animals in the polar circles? 南极圈和北极圈内有动物存在吗？
- The maintaining of one vice costs more than ten virtues. 保持一桩恶事的代价超过于十件好事。
- How many military bases are they maintaining on foreign soil? 他们在外国保持多少个军事基地？
- He is too poor to maintain his family. 他太穷了，无法养活家人。
- A substance believed to maintain life indefinitely. 长生不老药被认为可以使生命无限的物质
- 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 plan is merely designed to maintain their nuclear superiority. 制定这个计划只是为了保持他们的核优势。
- The factory cannot maintain current levels of production. 该工厂不能保持目前的生产水平。
- The polar region is the habitat of the polar bear. 北极地带为北极熊的栖息地。
- They expended large sums of money in maintaining this beach. 他们花去大笔的钱维护这个海滩。
- 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。
- Operating by means of suction or by maintaining a partial vacuum. 抽真空的用吸取的方式或用维持部分真空的方式来运作的
- 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。
- 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。
- He can't maintain enough equilibrium to ride a bike. 他骑自行车不能保持平衡。
- Love and hatred are polar feelings. 爱与恨是完全相反的感情。
