south-north asymmetry

例句：

1. 1.The distribution of resources is often unevenly distributed across the country.
   资源的分布往往在全国范围内不均匀。
2. 2.The growth patterns of different species can vary greatly between regions.
   不同物种的生长模式在不同地区可以有很大的差异。
3. 3. The asymmetry in the distribution of wealth can lead to social inequality.
   财富分布的不对称可能导致社会不平等。