challenge an arbitrator造句

Reasons for challenging an arbitrator include : ( 1 ) the arbitrator is a party to the arbitration or a close relative to a party to the arbitration; ( 2 ) the arbitrator has a personal interest in the dispute; ( 3 ) the arbitrator has any type of relationship which can affect his impartiality; or ( 4 ) the arbitrator privately met with a party or accepted offers of entertainment or a gift from the party or an authorized representative of the party.
It's difficult to find challenge an arbitrator in a sentence. 用challenge an arbitrator造句挺难的