a street entertainer的用法和样例：
- In the old days he scraped along as a street entertainer.
- I don't think he is a street entertainer, I really believe he's overreaching.
- Two small boys and a dog comprised the street entertainer's only audience.
- I am always careful when crossing a street.
- He could never pass a street fight without pitching in.
- A path marked off for pedestrians crossing a street.