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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。
- What is the ending in the singular? 这个词的单数词尾是怎样的?
- I had a singular experience in Africa. 我在非洲时有过一次奇特的经历。
- In English, nouns can be singular or plural. 英语中，名词有单复数之分。
- Are there any animals in the polar circles? 南极圈和北极圈内有动物存在吗？
- polar singularities 极点奇异性
- The singular of "mice" is "mouse". "mice"的单数形是"mouse"。
- 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。
- "One boy" is singular; "two boys" is plural. "一个男孩"是单数; "两个男孩"是复数。
- The polar region is the habitat of the polar bear. 北极地带为北极熊的栖息地。
- The noun "mouse" is singular; it is the singular form of "mice". 名词“mouse”是单数，它是“mice”的单数形式。
- 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。
- The plural of a noun is usually made by adding -s to the singular. 名词复数通常以单数加-s构成。
- 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。
- Love and hatred are polar feelings. 爱与恨是完全相反的感情。
- 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
- By overlapping these fileds from two singularities. 从两个奇点处重叠这些重力场。
