riot act

名词 riot act:

1. a vigorous reprimand
2. a former English law requiring mobs to disperse after a magistrate reads the law to them

1. The teacher really read him the Riot Act when he hit a ball through the window and broke it.
   在他把球打进窗子并打破了玻璃以后，老师狠狠地训斥了他一顿。