Rubbish collectors at the Great Wall of China
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Chinese couple work to keep Great Wall litter-free

Husband and wife Chang Shitou and Qian Erling have been clearing rubbish left behind by tourists at the Great Wall of China for the past 10 years.

They spend 10 hours a day filling and carrying 50kg bags of litter at the ancient monument.

Xiaoyun Yao reports.

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