moderator

moderator
noun

an arbitrator or mediator
仲裁人；调解人
Egypt managed to assert its role as a regional moderator.
埃及成功保持了其地区调解员地位。
■a presiding officer, especially a chairman of a debate
（尤指辩论会）主持人
■a Presbyterian minister presiding over an ecclesiastical body
长老会教长
a person who reviews examination papers to ensure consistency, or otherwise oversees an examination
（试卷）审核员；监考
(Physics)a substance used in a nuclear reactor to retard neutrons
(物理)缓和剂，减速剂

派生
moderatorship
noun
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