coloring
英 美['kʌlərɪŋ]
	    - v. 着色(color的ing形式);出现颜色
 - n. 着色;着色剂;配色;天然色;外貌
 
考试真题
- It's in these populations that we begin to see real changes in the genetic makeup of natural coloring.
 
2019年6月六级真题(第一套)听力 Section C
- Not only the coloring genes but lots of other genes are getting mixed up, too.
 
2019年6月六级真题(第一套)听力 Section C
- What we did in our ancestry was to produce more permanent natural coloring in our skin cells.
 
2019年6月六级真题(第一套)听力 Section C