The Dordogne region's gastronomic specialities include truffles and foie gras.多尔多涅地区的美食特产包括块菌和肥鹅肝。The pig was nosing under some moss to uncover a lump of truffle.这只猪用鼻子在一些苔藓下面闻了闻，想挖出一个块菌。Pigs have a keen sense of smell, which is why they are used to find truffles.猪的嗅觉非常灵敏，所以被用来嗅探块菌。