道格拉斯

例句：

1. 1. Douglas is a famous scientist in the field of physics.
   道格拉斯是一位著名的物理学家。
2. 2. The name "Douglas" is often used as a surname in Canada and the United States.
   “道格拉斯”这个名字在加拿大和美国常用作姓氏。
3. 3. In ancient times, there were many people named Douglas who played important roles in history.
   古代有许多名为道格拉斯的人，他们在历史上扮演了重要的角色。