n.多样性；差异
Diversity is conducive to the learning environment. 多样化对学习环境确有益处。
India has huge diversity and could evolve into a trading club and become rich. 印度国内差异巨大,完全可能演变成一个自由贸易俱乐部,最终实现致富。
n.生物多样性
文化多样性
