simple graph

例句：

1. 1. The simple graph shows the distribution of the population across the region.
   简单的图形显示了人口在该地区的分布。
2. 2.The basic graph helps us understand the relationship between variables.
   基本的图形帮助我们理解变量之间的关系。
3. 3. The elementary graph is a useful tool for teaching children about shapes and measurements.
   基本图形是教授儿童形状和测量的有用工具。