词典释义：
释义
n.
an arbitrator or mediator
仲裁人；调解人
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Egypt managed to assert its role as a regional moderator. 埃及成功发挥了其地区调解员的作用。
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；监考人。
a person who moderates an Internet message board or chat room
留言板版主；聊天室版主。
【物理】 缓和剂，减速剂。
