1. Pollen grain semiangular in polar view. 花粉粒半具角在极面观。
2. And what better treat could a polar bear get on a hot day but some big blocks of ice? 除了一些巨大的冰块，在大热天，一头北极熊还能够被给与什么更加好的对待呢？
3. A polar bear takes a dip in the pool during the warm summer weather at the zoo in Munich, Germany. 德国慕尼黑动物园内的北极熊一边照“镜子”，一边浸泡在水池内以度过炎热的夏天！
英英解释
adj.
1. having a pair of equal and opposite charges
2. characterized by opposite extremes; completely opposed
3. located at or near or coming from the earth's poles
4. of or existing at or near a geographical pole or within the Arctic or Antarctic Circles
5. extremely cold
6. being of crucial importance
