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- The two systems of government are polar opposites. 这两种政体正好相反。
- We were seized by a sudden impulse to run. 我们身不由己突然想跑。
- His irresistible impulse to set fire to shoe shop. 他放火烧鞋店的不可抗拒的冲动。
- Most insect do not live in polar region. 大多数的昆虫不在极地地区生存。
- He bought the house on an impulse. 他凭一时冲动买下了这所房子。
- Are there any animals in the polar circles? 南极圈和北极圈内有动物存在吗？
- He felt an irresistible impulse to jump. 他突然有个无法抗拒的冲动，想跳下去。
- My uncle bought the house on an impulse. 我叔叔一时冲动买下了那房子。
- 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
- An irresistible impulse to sneeze. 抑制不住的想打喷嚏的冲动
- 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。
- A strong creative impulse; divine inspiration. 灵感，神感强烈的创造欲; 神明启示
- The polar region is the habitat of the polar bear. 北极地带为北极熊的栖息地。
- polar impulse 极性脉冲
- 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。
- I used to act out of blind impulse when I was young. 我年轻时常凭盲目的冲动行事。
- Because of the difference between the extraordinary and ordinary indices of refraction of the crystal,after passing the crystal,the two orthogonally polarized impulses will be different in phase. 光线正入射到这一系统，通过起偏振器后的偏振光投射到晶体上时分解为互相正交的寻常光和非常光，两束光由于折射率的不同经过晶体时会有一定的位相差。
- On impulse, I picked up the phone and rang my sister in Australia. 我一时心血来潮，拿起话筒就给在澳大利亚的妹妹打了个电话。
- 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。
