pigment|pigments

这种红色颜料是用天然矿物研磨而成的。

This red ___pigment is made by grinding natural minerals.

这些天然颜料是从植物中提取出来的。

These natural ___pigments are extracted from plants.

胡萝卜中的橙色色素主要来自β-胡萝卜素。

The orange ___pigment in carrots mainly comes from beta-carotene.