对引用的马恩的四例论述未加解释说明因而不能作为论据；
The four quote on 'the social necessary labor-time' of address oneself of Marx and Engls without explain is not taken for grounds of argument.
对引用的马恩的四例论述未加解释说明因而不能作为论据；
The four quote on 'the social necessary labor-time' of address oneself of Marx and Engls without explain is not taken for grounds of argument.
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