C2 the set of colours into which a beam of light can be separated, or a range of waves, such as light waves or radio waves光谱;波谱;声谱;频谱
More examples
The survey revealed a wide spectrum of opinion.
He is some way along the autistic spectrum.
He was held in great affection by people from the entire political spectrum.
C1 a range of different positions, opinions, etc. between two extreme points(看法、感觉等的)范围,各层次
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