Students show their hands smeared with a kind of medical liquid after being rescued from a company in Ningbo, East China's Zhejiang Province in August 2006. Some 100 elementary students from Anhui and Henan provinces traded work-for-study in a company in Ningbo, where they were forced to work overtime and were confined at the company. Local police rescued all the students after receiving a report from four girls who ran away from the company. [Jin Xueyong/Xin'an Evening News]

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