主持人正在调节小组讨论的激烈气氛。

The host is ___moderating the intense group discussion.

老师将在明天的辩论赛中担任主持人。

The teacher will be ___moderating the debate competition tomorrow.

随着夏天的到来，天气逐渐变得温和起来。

The weather is ___moderating as summer approaches.