Marco polo sheep

例句：

1. 1.Marco Polo was a famous explorer who traveled to many countries.
   马可·波罗是一位著名的探险家，他游历了许多国家。
2. 2.The Marco Polo sheep are known for their soft wool and warm fleece.
   马可波罗羊以其柔软的羊毛和温暖的毛皮而闻名。
3. 3. The Marco Polo sheep are an important part of the local economy.
   马可波罗羊是当地经济的重要组成部分。