铜屋顶经过多年风吹雨打，表面形成了一层漂亮的铜绿。

The copper roof has developed a lovely layer of ___verdigris after years of exposure to the elements.

这位画家用铜绿制作了一种特殊的绿色颜料。

The painter created a special green pigment using ___verdigris.