幸福着迈向国荣

51. Using many symbols makes it possible to put a large amount of inFORMation on a single map. 51.使用多种多样的符号可以在一张地图里放进大量的信息。 52. Anarchism is a term describing a cluster of doctrines and attitudes whos...

76. The beaver chews down trees to get food and material with which to build its home. 76.水獭啃倒树木，以便取食物并获得造窝的材料。 77. Poodles were once used as retrievers in duck hunting, but the American Kennel Club d...