单词	concrete repair
释义	concrete repair 混凝土修补
随便看	social man social management Social Management and Control social management Cost Social management function social management mode social management of the productive forces social management system social man and natural man social man assumption socialman hypothesis social man hypothesis social manifestation social manner social manners social mapping social margin social marginal benefit Social marginal cost social marginality social marginal utility of income social market social-market social market economy social market economy model