巢居

• In the primary society of china , people lived in caves or shacks for a long period . after summarizing the housing experience in practical , people began to realize that the circular spare provided inhabitants reasonable cost , safe structure and simple construction . therefore , circular houses were largely built
  在中国古代原始社会里,人们长期过着穴居、巢居、窝棚等生活,经过实践经验的总结,人们开始认识到圆形空间的经济、结构安全和构造简单,因此曾大量建造圆形住宅。