At every single moment in your life, your drawing a mental boundary around things and grouping things into categories.

在你生命中的每一个时刻，你都会在事物周围画出一个心理界限，然后将事物分类。

And then there’s gerrymandering, with politicians drawing the boundaries of their own voting districts into crazy shapes designed to prevent competition.

然后是选区划分，政客们将自己选区的边界划成疯狂的形状，旨在阻止竞争。

In fact, some school districts were drawing their district lines (that is, the boundaries between schools on maps) so that they followed the racial segregation of the neighborhoods themselves.

事实上，一些学区正在绘制他们的学区线（即地图上学校之间的边界），以便他们遵循社区本身的种族隔离。