红色和紫色位于光谱的两端。
这一发现解释了秋天的颜色是黄色和橙色,而不是像枫树或漆树那样明亮的红色和紫色。
This unmasking explains the autumn colours of yellow and orange, but not the brilliant reds and purples of trees such as the maple or sumac.
西边的天空在红色和紫色的云后面闪着亮黄色的光。
The western sky can glow a brilliant orange behind red and purple clouds.
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