alum-carmine stain

例句：

1. 1. The stain on the table is caused by the spilled coffee.
   桌子上的污渍是由咖啡洒出来的。
2. 2.The artist used alum-carmine stain to create the vibrant colors in his painting.
   这位艺术家使用铝碳酸盐着色剂在他的画作中创造了鲜艳的颜色。
3. 3.The stain on the fabric is difficult to remove, and it has been there for quite some time.
   布料上的污渍很难去除，而且已经在那里很长时间了。