體育新聞：里約奧組委公布2016奧運(yùn)獎牌

　　Rio 2016 organisers have revealed1 the medals that will be competed for at this summer's Olympics.

　　2016年里約奧運(yùn)的組委會公布了今夏奧運(yùn)賽場將競逐的獎牌。　　

　　A total of 2,488 medals, each weighing 500g, have been produced - with 812 gold, 812 silver and 864 bronze.

　　They were made with "sustainability at their heart", say organisers.

　　The gold medals are free from mercury2, the silver and bronze medals are made from 30% recycled materials, and half of the plastic in their ribbons is from recycled plastic bottles.

　　The designs feature laurel leaves - a symbol of victory in ancient Greece - surrounding the Rio 2016 logo, and organisers say they celebrate "the relationship between the strengths of Olympic heroes and the forces of nature".