DOO

例句：

1. 1.
   动物
2. 2.
   游戏
3. 3.
   动作
4. 1. The farmer had a pig named Pluto.
   农民养了一只名叫普路托的猪。
5. 2. He was a bigwig in the business world.
   他在商界是个人物。
6. 3. She grunted as she worked on the project.
   她边工作边嘟囔。