leuce dye

例句：

1. 1. The artist uses leucium to create vibrant colors in his paintings.
   这位艺术家使用胭脂虫来在他的画作中创造出鲜艳的颜色。
2. 2.The painter used a mixture of leucium and umber to achieve the desired shade.
   这位画家使用了胭脂虫和煤焦油的混合物来获得所需的色调。
3. 3.The scientist discovered that leucium could be used as a natural alternative to synthetic dyes.
   这位科学家发现胭脂虫可以作为合成染料的自然替代品。