1.multicultural 多元的；多种文化的

例句：Multicultural America has numerous minority groups that argue for equal treatment.
多元文化的美国拥有无数为平等待遇而争论的少数团体.

2.heterogeneity 多样性

例句：Heterogeneity in societies will be the rule in the twenty-first century, and failure to recognize and plan for such diversity can lead to serious crime problems.
社会的多样性将是21世纪的规则，未能意识到这点，没有准备好适应这种多样化将会导致严重的犯罪问题。
3.enriching 丰富的，富裕的

例句：It was a dark enriching influence she had not known before.
这是一种她从来未感受到的朦胧而又不断丰美的感化力量。

4.homogeneous 同种的，相似的，同质的

例句：However, the crust is not a homogeneous shell in which lower places are filled with water to make oceans and high places piled up with rocks to make continents.
然而，地壳并不是一个均匀的壳，其低处充满了水并构成海洋，高处堆积着岩石构成大陆。