a band of robbers的用法和样例：
- A band of robbers held up the train.
- We were set upon by a band of robbers.
- Tom Sawyer hunted me up and said he was going to start a band of robbers.
- The little tailor journeyed on and came to a great forest, and there he fell in with a band of robbers who had a design to steal the king's treasure.
- He was waylaid by a band of guerrillas.
- He was attacked by a band of ruffians.