当您不知道如何表达时，这里有一些表达方式供您参考：
1. I'm sorry, I don't know.
2. I have no idea.
3. I don't know anything about this.
4. What are you asking me for？
5. How the hell should I know？
6. I haven't got a clue.
当您不知道如何表达时，这里有一些表达方式供您参考：
1. I'm sorry, I don't know.
2. I have no idea.
3. I don't know anything about this.
4. What are you asking me for？
5. How the hell should I know？
6. I haven't got a clue.