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In the 1920s a group of factory workers advocate for safer work conditions after some [ZiYuantun.Com]of their colleagues become ill from radium exposure. 译文(2): 20世纪20年代，一群工厂工人在他们的一些同事因为接触镭而生病后，提倡更安全的工作条{资源屯-ziyuantun.com}。
In the 1920s a group of factory workers advocate for safer work conditions after some [ZiYuantun.Com]of their colleagues become ill from radium exposure. 译文(2): 20世纪20年代，一群工厂工人在他们的一些同事因为接触镭而生病后，提倡更安全的工作条{资源屯-ziyuantun.com}。
