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1·Not only the coloring genes, but lots of other genes are getting mixed up, too.

不仅是染色基因，还有很多其他基因也混在一起了。

2·What we did in our ancestry was to produce more permanent natural coloring in our skin cells.

我们祖先所做的是在我们的皮肤细胞中产生更持久的天然色素。

3·Add four drops of red food coloring to the water above the hot cup and four drops of blue food coloring to the water above the cold cup.

从热杯子上方向水中加四滴红色食用色素，从冷杯子上方往水中加四滴蓝色食用色素。

4·Shelley looked at the coloring book and then looked up at me, and finally looked away.

谢莉看了看图画书，然后抬头看了看我，最后移开了视线。

5·One time, I gave her a coloring book and said, Shelley, now you can color at any time.

有一次，我给了她一本涂色书，说：“谢莉，现在你随时都可以涂色了。”

6·He likes coloring the coat grey.

他喜欢把大衣涂成灰色。

7·His younger sister is coloring a picture.

他的妹妹正在给一幅画涂上颜色。

8·It's in these populations that we begin to see real changes in the genetic makeup of natural coloring.

正是在这些种群中，我们开始看到自然色彩的基因构成发生了真正的变化。

9·They are recognizable by their coloring (mostly brown with yellow spots), large pointed teeth, and the notch in their lower lip.

可以从它们的颜色（大多是带有黄色斑点的棕色）、大尖牙和下唇的凹陷处辨认出来。

10·The coloring material of logwood is used in dyes, inks, and stains.

原木的着色材料用于染料，油墨和污渍。

(1)coloring mattern. 色素；染料

(1)coloring agent着色剂；染料