social units

In many traditional societies, the family is the most important social unit.

在许多传统社会中，家庭是最重要的社会单位。

Each classroom can be seen as a small social unit with its own rules.

每个教室都可以看作一个有自己的规则的小型社会单元。

The village was once a self-contained social unit, but now it is connected to the city.

这个村庄曾经是一个自给自足的社会单元，但现在它和城市连在一起了。