How to carry on the security task of agriculture machines while enforcing the system of investigation into security duty is a new problem for the concerning leaders of agriculture machines.

实施安全责任追究制度后，如何做好农机安全工作，这是新形势下摆在各级农机领导面前的新课题。

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Article 7 the administrative department of labor security shall have the duty to guide, supervise and inspect the carrying out of the labor contract system.

第七条劳动保障行政部门对劳动合同制度的实施，负有指导和监督检查的职责。

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In the U.S., the Social Security system has taken on most of the burden for caring for elderly adults, a duty that traditionally fell to grown-up children.

WSJ: America's Baby Bust