题目内容：

turn 用法
Acids are chemical compounds that,in water solution,have a sharp taste,a corrosive action on metals,and the ability to turn certain blue vegetable dyes red.
请问,turn 后面怎么还跟了个dye呢》这时怎么用的饿?

优质解答

此处的dye是名词“颜料”之意,词组turn certain blue vegetable dyes red简化一下就是 turn dyes red “颜料变成红色”,certain blue vegetable 作 dyes的定语,意为“某些蓝色的植物（颜料）”