研究者认为红发对于疼痛更敏感因为决定其发色的基因发生了变异。

Researchers believe redheads are more sensitive to pain because of a mutation in a gene that affects hair color.

youdao

可增加灰色秀发的银亮色调，中和经过化学处理的秀发和各种发色的黄铜色调。

Adds silvery brightness to gray hair, and neutralizes brassiness in chemically-treated hair and all shades.

youdao

研究者已调查了数以百计欧洲人的DNA及发色信息，并研究了预先知晓的决定发色的基因。

The researchers studied DNA and hair colour information from hundreds of Europeans. They investigated genes previously known to influence the differences in hair colour.

youdao

And gradually as I was a teenager, my hair color changed.

等我成长后，我的发色开始发生变化。

I used to实战 - SpeakingMax英语口语达人