synthetic dye

• 合成染料

synthetic dye的用法和样例：

例句

1. Indelible ink often consists entirely of synthetic dyes.
   不褪色墨水一般均由合成染料构成。
2. Natural dye extracts, however, are just as quick to use as synthetics but produce the genuine natural colours of real natural dyes.
   然而，天然染料，也像合成染料一样正被人们更多的接收和使用，但是只有天然染料才能产生真正逼真的颜色。