colorant [ˈkʌlərənt]

例句:

• It'serves as a red colorant for glass and glazes.
  还用作玻璃和釉面的着色剂.
  
• The colorant composition may be a liquid or a solid composition.
  着色剂组合物可以是液体或固体组合物.
  
• Powdered colorant need to keep the paper, or transfer charge.
  粉末状的着色剂需要使用能够保持或转移电荷的纸张.
  
• My first IT job, and my introduction to business travel, was with a large colorant manufacturing company named Colormatrix.
  来自WSJ