People work at tannery in old city of Fez, Morocco
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People work at a tannery in the old city of Fez, Morocco, on May 30, 2021. (Photos: Xinhua)

A man works at a tannery in the old city of Fez, Morocco, on May 30, 2021.

People work at a tannery in the old city of Fez, Morocco, on May 30, 2021.

People work at a tannery in the old city of Fez, Morocco, on May 30, 2021.

A man works at a tannery in the old city of Fez, Morocco, on May 30, 2021.