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'Bright angels': Guide dogs for visually-impaired people

By Xu He | chinadaily.com.cn | Updated: 2018-10-16 14:22
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A preparatory guide dog learns to obey an order, at China Guide Dog Training Center located at Dalian Medical University, in Dalian, Northeast China's Liaoning province, Oct 13, 2018. [Photo provided to chinadaily.com.cn]
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