purpurate

例句：

1. 1.The flowers were purple when they bloomed.
   这些花盛开时是紫色的。
2. 2.The paint was so thick that it stained the paper.
   油漆太浓了，把纸都染黑了。
3. 3.The chef used a special purple dye to color the meat.
   厨师用一种特别的紫色染料给肉着色。