人们早就发现,平常总是蒙着白面纱的太阳光,原来是由七种色光组成的大家庭。要是让阳光透过一块三棱镜,就能揭去它的白面纱,露出真面目——一条非常美丽的红、橙、黄、绿、青、靛、紫的彩色光带。可是,你知道吗?在阳光这个大家庭中,却还有不肯露面的成员。 People have long discovered that the sun, which is always covered with white veil, was originally a large family of seven shades of light. If you let the sun shine through a prism, you can uncover its white veil to reveal the true colors - a very beautiful red, orange, yellow, green, blue, purple and purple colored bands. However, do you know that in the big family of the sun, there are still members who refuse to show up.