Buchan

例句：

1. 1. He was a famous Buchan, known for his contributions to the field of economics.
   他是一位著名的经济学家，以他对经济学的贡献而闻名。
2. 2. The Buchan government has been criticized for its handling of the crisis.
   布坎南政府因其处理危机的方式受到批评。
3. 3. Buchan is a popular tourist destination in the region.
   布坎南是该地区的一个受欢迎的旅游目的地。