原级：arbitrate
现在分词：arbitrating
\u0039\u0031\u0031\u67E5\u8BE2\u00B7\u82F1\u8BED\u5355\u8BCD
过去分词：arbitrated
过去式：arbitrated
1. He also chairs the Expediency Council, a body that arbitrates disputes between parliament and the unelected Guardian Council.