laborern.劳动者；劳工=labourer（英）.laborn.工人；劳工；工作；分娩；劳力v.苦干；劳动；致力于；过分详尽阐述adj.劳工的；劳动的labor contract system劳动合同制labor safety accident劳动安全事故Laboratrory diagnosis实验室诊断laborers inefficiency用工短缺Laboratorial analysis实验室分析labor medicare system劳保医疗制度labor service economy劳务经济labor safety facility劳动安全设施labor force structure劳动力结构labor-exchange team变工队