您要查找的是不是：
- Polarization Fatigue and History Memory Effect in Ferroelectrics 铁电体的极化疲劳和历史记忆效应
- The two systems of government are polar opposites. 这两种政体正好相反。
- Differential Hysteresis Loop of Ferroelectrics and Polarization Fatigue 铁电微分回线谱参数和极化疲劳
- He was beaten out with fatigue when he got home. 他回到家里时已是疲惫不堪。
- She fell out from extreme fatigue. 她由于极度疲劳而掉队了。
- A very funny joke may relieve you of a whole day's fatigue. 一则非常滑稽的笑话可以使你消除一天的疲劳。
- Most insect do not live in polar region. 大多数的昆虫不在极地地区生存。
- The aeroplane wing showed signs of metal fatigue. 机翼显出有金属疲劳的现象。
- Are there any animals in the polar circles? 南极圈和北极圈内有动物存在吗？
- Fatigue is incidental to a journey in a strange land. 在陌生的地方旅行，容易疲劳。
- 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
- Causing fatigue or boredom; wearisome. 累人的引起疲劳或厌烦的; 使人疲劳的
- 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。
- It is a treat to have a drink after the fatigue of the day. 干了一天的累活後喝杯酒其乐无穷。
- The polar region is the habitat of the polar bear. 北极地带为北极熊的栖息地。
- Finally, her mind gave in to fatigue and she fell asleep. 最后她的心力疲惫不堪，就睡着了。
- 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。
- 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 hasn't got over his fatigue yet. 他的疲劳还没有恢复。
