n.调解人；介质
She called in a mediator to settle the dispute. 她请了一位调停人来调解这次争执。
All proposals were rejected by the mediator. 所有的建议都被仲裁人驳回。
The new findings show H2S may be the mediator for these protective benefits. 新发现表明H2S可能是这些保护作用的介质。
中介物质
n.仲人；调解者；仲裁者
