productive labour短语¹⁴⁴⁹⁷²⁺² 基本例句 生产劳动 Through the analysis of two different ideas at present, a conclusion is made that not all service trades are productive labour, but non productive/span> labour can also create values. 通过对目前理论界两种完全不同的理论辨析，认为服务业劳动并不都是生产劳动，但非生产劳动也可以创造价值。 cnki