be (a) party to something
成語所屬單字party
be (a) party to something — 慣用語
1. To be involved in or know about a particular agreement or action.
1.慣用語
釋義
參與（某協議或行動）
To be involved in or know about a particular agreement or action.
例句
Maya refused to be a party to the unfair contract.
Were you a party to the decision to close the library?