suffuse

温暖的阳光逐渐浸染了整个房间。

The warm sunlight gradually ___suffused the entire room.

她的脸上渐渐洋溢出幸福的笑容。

Her face was ___suffused with a happy smile.

当发言人确认项目进展顺利时，一阵如释重负的感觉在听众中弥漫开来。

A wave of relief ___suffused the audience when the speaker confirmed the project was on track.