In all class societies, the members of the different social classes also enter, in different ways, into definite relations of production and engage in production to meet their material needs.

• 在各种阶级的社会中，各阶级的社会成员，则又以各种不同的方式，结成一定的生产关系，从事生产活动，以解决人类物质生活问题。