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- self polar triangle 自配极三角形
- The two systems of government are polar opposites. 这两种政体正好相反。
- He outlined the triangle in red. 他用红笔画出三角形。
- The angles of a triangle total 180. 三角形的三角之和等于180°。
- Most insect do not live in polar region. 大多数的昆虫不在极地地区生存。
- I do not like to go to the movies by my self. 我不喜欢自己一个人看电影。
- I my self is going to make a sandwich. 我要亲手做个三明治。
- He was a wreck of his former self. 他身体坏得不成样子，已兴从前判若两人。
- Knowledge of self increases as one gets older. 随着年岁的增长，人们的自我认识也不断加深。
- Are there any animals in the polar circles? 南极圈和北极圈内有动物存在吗？
- He's not looking like his old self lately. 他最近看起来不像以前那样。
- He is my best friend, my second self, as it were. 他是我最好的朋友，或者说，是第二个我。
- He never has any thought of self. 他从不考虑个人得失。
- He is now out of all conceit with his former self. 他现在全盘否定了他原来的自己。
- 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
- polar triangle 配极三角形,极三角形
- 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 polar region is the habitat of the polar bear. 北极地带为北极熊的栖息地。
- He tried to prove that the triangle was isosceles. 他想证明那个三角形是等腰的。
- 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。
