act in collusion的用法和样例：
- She acted in collusion with the other witness.
- They acted in collusion with corrupt officials.
- They ganged up and acted in collusion with each other.
- Old lady, although little talent and less learning，But it is also a proud man,(With ID card for card)，How can they act in collusion with these eunuch!
- Legislatures often act in a negatory manner.