coral reefs, 珊瑚礁

The coral-coated bicycles saving the 'rainforests of the deep': Marine experts park rack of bikes on the ocean floor to encourage coral reefs to grow | Mail Online http://www.dailymail.co.uk/news/article-2275690/The-coral-coated-bicycles-saving-rainforests-deep-Marine-experts-park-rack-bikes-ocean-floor-encourage-coral-reefs-grow.html#axzz2KJUdPBXN
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