光谱的颜色可以在彩虹中看到。

The colours of the ___spectrum can be seen in a rainbow.

然后，在黎明时分，太阳慢慢升起，产生了一个壮观的色彩光谱，从深紫色到耀眼的黄色。

Then, at dawn, the sun slowly rises, producing a spectacular ___spectrum of colours, ranging from deep purple to blinding yellow.

棱镜将白光分离成完整的光谱颜色。

A prism separates white light into the full ___spectrum of colours.