The map is red-yellow-blue 那幅地图是红黄蓝色的
Color four squares into red, yellow, blue or green.
给四个正方形涂色：红色、黄色、蓝色或绿色。
His ideas about what colors symbolize, about the emotions that different colors inspire were based on the colors red, yellow and blue.
他关于颜色象征的思想，关于不同的颜色所能激起不同情绪的理论，是基于红、黄、蓝这些颜色的。
The idea of primary colors, and specifically the idea of red, yellow and blue being the primary colors, didn't exist until about 200 years ago.
原色的概念，特别是以红色、黄色和蓝色作为原色的概念，是直到大约200年前才出现的。
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