Collusive behaviour involves secret or illegal co-operation, especially between countries or organizations.
例句
Any evidence of collusive behaviour by the banks could be sent to the Office of Fair Trading.任何能证明银行有串通行为的证据都可以送交公平贸易部。...collusive business practices.内外串通的商业行为
英英词典释义
Adjective
1. acting together in secret toward a fraudulent or illegal end