brightening

例句：

1. 1. The sun is shining brightly today.
   今天太阳非常明亮。
2. 2. The room was dimly lit by the single bulb overhead.
   房间由头顶的单个灯泡昏暗地照亮。
3. 3. The new paint job has brightened up the old house.
   新的油漆工作让旧房子焕然一新。