音标：['mɒdәreitә]
n. 主席, 会议主持人, 仲裁人
【计】 筛选人
【化】 慢化剂
【医】 缓和器, 减速器
在线英汉词典

moderator的短语、例句：

moderator n 1 person who arbitrates in a dispute; mediator 仲裁人; 调解人. 2 person who makes sure that the same standards areused by different examiners when marking an examination 评分监督（统一各主考人评分标准者）. 3 Presbyterian minister presiding over a church court 长老会教会法庭上的主持者. 4 (physics 物) substance in which neutrons are slowed down in a nuclear reactor 减速剂, 慢化剂（核反应堆中使中子减速的物质）.