accessorial

adj.附属的,辅助的,增加的,补充的

附属的；协助的

形容词

1. The driver was held responsible for the accident due to his accessorial actions.
由于司机的协助行为，他被追究对事故负有责任。
2. The witness provided crucial accessorial information to the police during the investigation.
在调查过程中，证人向警方提供了关键的附属信息。