/ˈspektrəm ||; ˈspɛktrəm/noun [C] [usu.sing] (
plural spectra /ˈspektrə
||; ˈspɛktrə/)
1 the set of seven colours into which white light can be separated 光谱: You can see the colours of the spectrum in a rainbow. 从彩虹中可以看到光谱的颜色。
2 all the possible varieties of sth 系列；范围: The speakers represented the whole spectrum of political opinions. 演讲者代表着所有不同的政治见解。