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Competitors show their tiramisu during the Tiramisu World Cup in the Roncade castle, near Treviso, Italy, on Nov. 4, 2017. Tiramisu World Cup 2017 was held in and around Italian's northern city Treviso on Nov. 4 and Nov. 5, with 720 non-professional chefs competing for "world's best tiramisu". (Xinhua/Jin Yu)