Things you need to know about the Rio Olympics

Updated: 2016-07-21 16:39

(chinadaily.com.cn)

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Things you need to know about the Rio Olympics

A worker cleans a gold medal to be awarded at the Rio Olympic Games after its gold bath at a coin factory in Rio de Janeiro, Brazil, on July 18, 2016. [Photo/VCG]

Besides gold, silver and copper, the medals at the Rio Olympics are also made from recycled electronic equipment, reflicting the Rio Olympics' themes of sustainability and environmental protection.

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