a blind corner的用法和样例：
- An example of where a braking reference point is a must, is a blind corner.
- Taking a blind man across the street is a kind act.
- It's cruel to make fun of a blind man.
- Bob turned a blind eye to the "No Fishing" sign.
- His job as a diplomat was a blind for his spying.
- A trained dog can act as a guide to a blind person.