In the 1920s, Swiss psychologist Jean piaget proposed that children's cognitive abilities unfold naturally,like the blooming of a flower, almost independent of what else is happening in their lives.
2015年12月四级真题（第二套）阅读 Section A
柯林斯高阶英汉双解学习词典释义
ADJ
瑞士的;瑞士人的;瑞士文化的
Swiss means belonging or relating to Switzerland, or to its people or culture.