为什么交通灯是红、黄、绿三种颜色的？
他们给她喝了三种葡萄酒，有白的、红的、黄的，然后她就那样死去了。
They gave her three kinds of wine to drink, white, red, and yellow, and with that she died.
此时，歌德已经是位很有名的作家了，所以他能很容易就把原色的概念推广出去，特别是把红、黄、蓝作为“三原色”的概念并加以推广。
At this point, Goethe was already a well-known author, so he was easily able to popularize this idea of primary colors, and specifically the idea of red, yellow and blue as THE primary colors.
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