自然景象千姿百态,都经过了漫长的、优胜劣汰的竞争和千辛万苦的进化,致使在结构、形态和功能三方面达到最优设计而流传于世。因而,大自然的精妙建构就成了人 Natural sceneries in different poses and with different attitudes have gone through a long period of competition, survival and survival of the fittest, and the arduous evolution that has led to the spread of the best designs in terms of structure, form and function. Thus, the delicate construction of nature has become a human