a foolish act的用法和样例：
- This is only a fable, in our actual teaching was not such a stupid thing, "fisherman", there is such a foolish act: class is the process of implementation of lesson plans.
- She's a foolish interfering old woman!
- It's a foolish idea;I hope you'll think better of it.
- He was angry with himself for having made such a foolish mistake.
- This foolish act went smack against the rules.