spectrum

spectrum — 名詞

1. The full range of different types of light, radio waves, sound waves, or other f

1.名詞B2
釋義

光譜；波譜

光線或波長由短到長的連續分布

The full range of different types of light, radio waves, sound waves, or other forms of wave-like energy, arranged by wavelength or frequency. When white light passes through a prism, the visible part of this range appears as a band of colours — red, orange, yellow, green, blue, indigo, violet.

例句

When sunlight passes through a glass prism, it spreads into a spectrum of seven colours.

當陽光穿過玻璃稜鏡時，會散開成一道七色光譜。

collocation: spectrum of colours

Radio telescopes detect waves from across the entire electromagnetic spectrum.

無線電望遠鏡可以偵測到來自整個電磁波譜的波。

collocation: electromagnetic spectrum

同義詞
  • range

    more general, does not specifically imply waves or colours

  • continuum

    emphasises an unbroken sequence, more formal

  • array

    suggests an ordered display rather than a natural band

文法句型

the [adjective] spectrum

spectrum of + colours / waves / frequencies

用法筆記

Frequently used in scientific writing where the plural 'spectra' is standard (e.g., 'mass spectra', 'emission spectra'). Non-specialists normally use the singular form.

常見錯誤

❌The light created a spectra of colours.
✅The light created a spectrum of colours.
💡'Spectra' is the plural form, not a singular noun.

2. A wide range of different opinions, beliefs, needs, situations, or qualities tha

2.名詞B2
釋義

光譜；範圍

從極端到極端的廣泛區間

A wide range of different opinions, beliefs, needs, situations, or qualities that exist between two opposite extremes. The two ends represent the most opposing positions, and everything in between is part of the spectrum.

例句

Opinions at the town meeting covered the whole political spectrum, from left to right.

市鎮會議上的意見涵蓋了從極左到極右的整個政治光譜。

collocation: political spectrum

The clinic offers support for people at every point on the autism spectrum.

這間診所為自閉症光譜上每個階段的人們提供支援。

collocation: autism spectrum

同義詞
  • range

    more neutral and common; spectrum implies polar opposites more strongly

  • gamut

    suggests the complete set from one extreme to the other, often in emotional contexts

  • continuum

    emphasises that the categories blend into each other without clear boundaries

文法句型

a spectrum of + plural noun

across the spectrum

cover the spectrum

range across the spectrum

on the spectrum

用法筆記

Often paired with 'from X to Y' to name the two poles. The phrase 'on the spectrum' (without qualification) is commonly understood in everyday English as shorthand for 'on the autism spectrum', though this can be ambiguous in formal writing.

常見錯誤

❌There is a wide spectrum between good and evil.
✅There is a wide spectrum of moral positions between good and evil.
💡'Spectrum' describes a range of items in between two poles, not a gap between them.