他调暗了灯光并调高了音乐。

He ___dimmed the lights and turned up the music.

服务员小心地调暗了灯光，当他们点餐时。

The light was carefully ___dimmed by the waiter as they ordered their food.

太阳落山时，日光逐渐变暗。

As the sun set, the daylight gradually ___dimmed.