permeate

The aroma of freshly baked bread began to permeate every room in the small house.

(Chinese) 新鲜出炉的面包香味开始弥漫在这栋小屋的每个房间。

A feeling of deep sadness seemed to permeate the entire crowd after the tragic news was announced.

(Chinese) 悲惨的消息公布后，一种深深的悲哀感似乎渗透进了整个人群。