Cartea autorului Rob Waring „The Black Diamonds of Provence. Footprint Reading Library 2200. Book" de la editura NATIONAL GEOGRAPHIC LEARNING

In France, some people earn money by selling a special food called a \\''truffel\\''. Truffles can be found in the woods, however they are very rare and expensive. That\\''s why they are sometimes called \\''black diamonds\\''. What is this unusual food, and why is it so expensive?

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