background lighting

例句：

1. 1. The room was bathed in soft background lighting.
   房间被柔和的背景照明所包围。
2. 2.The photographer used a flash to illuminate the dark background.
   摄影师使用闪光灯照亮了黑暗的背景。
3. 3. The restaurant's dim lighting made it difficult for me to read the menu.
   餐厅昏暗的灯光让我难以阅读菜单。