To put new paint on something to make it look nicer or to protect it.
We will have to repaint the fence to make it look fresh.
我们将不得不重新粉刷栅栏,让它看起来焕然一新。
To change the color of something by painting it with a different color.
They decided to repaint the walls with a more vibrant color.
他们决定用更鲜艳的颜色重新粉刷墙壁。