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TOEFL IELTS BNC: 3581 COCA: 3893

spectrum

Word family 
Related topics: Physics, Optics
spec·trum /ˈspektrəm/ ●○○ noun (plural spectra /-trə/) [countableC]  
1  VARIOUS/OF DIFFERENT KINDSa complete range of opinions, people, situations etc, going from one extreme to its opposite 〔观点、人、情况等的〕范围，幅度
spectrum of
 the ethnic spectrum of America
美国的各种族
across the spectrum
 The bill drew support from across the political spectrum.
这项议案得到了各个政治派别的支持。
broad/wide/full etc spectrum
 a broad spectrum of environmental groups
各式各样的环境保护团体
 The two articles here represent opposite ends of the spectrum.
这里的两篇文章代表了两个极端的观点。
2. HPthe set of bands of coloured light into which a beam of light separates when it is passed through a prism 光谱
3  HPTCa complete range of radio, sound etc waves 频谱
 the electromagnetic spectrum
电磁（波）谱
Examples from the Corpus
spectrum• He said that the court was faced with a spectrum of possibilities.• Hundreds of asteroid spectra have been compared with laboratory reflection spectra of meteorites and pure mineral samples.• Their songs appeal to a broad spectrum of music lovers.• This ensures that we can supply the complete spectrum of materials to all our customers in the building trade.• The announcement has upset people all across the political spectrum.• One way to look at Cleveland is to say it is at opposite ends of the political spectrum with San Francisco.• People from across the religious spectrum are now working together.• At one end of the spectrum were the Communists, and at the other, the Nationalists.• At the other end of the spectrum, the impact of child poverty on failing schools has never properly been addressed.• The spectrum of protest activity goes from peaceful to extremely violent.• You can find therapists along the whole spectrum, from caring and honest to cool and manipulative.
opposite ends of the spectrum• Lonnie and Alfred occupied opposite ends of the spectrum.• To demonstrate the diverse nature of the subject, two articles are included here which represent opposite ends of the spectrum.
Origin spectrum
(1800-1900) Latin “something that appears, image”, from specere “to look (at)”
spec·trum noun
Chinese
Syllable
Corpus
TOEFL IELTS BNC: 3581 COCA: 3893
spectrum

noun¹

 1range of light waves, etc.光譜ADJECTIVE | PHRASES ADJECTIVE➤visible可見光譜◇These wavelengths correspond to red in the visible spectrum.這些波長相當於可見光譜中的紅光。◇Beyond the red end of the visible light spectrum is infrared.在可見光譜紅色一端之外是紅外線。➤colour/color, electromagnetic色譜；電磁波譜➤broadcast, radio射頻頻譜PHRASES➤the colours/colors of the spectrum光譜顏色◇Other species can perceive colours / colors of the spectrum that are invisible to us.其他物種能夠感知光譜中我們看不到的顏色。➤the... end of the spectrum, the... part of the spectrum, the... portion of the spectrum, the... region of the spectrum光譜的⋯終段；光譜的⋯部份◇the ultraviolet part of the spectrum光譜的紫外線部份
spectrum

noun²

 2full or wide range範圍ADJECTIVE | VERB + SPECTRUM | PREPOSITION | PHRASES ADJECTIVE➤complete, full全部範圍◇The courses cover the full spectrum of levels.這些課程從初級到高級，各個水平都有。➤broad, wide範圍廣泛▸➤narrow範圍狹窄▸➤entire, whole整個範圍▸➤ideological, political, social意識形態流派；政治光譜；社會範疇➤age, income年齡／收入範圍VERB + SPECTRUM➤cover, span覆蓋／跨越⋯範圍➤represent代表⋯範圍◇These thinkers represent a wide spectrum of political perspectives.這些思想家所代表的政治觀點千差萬別，範圍很廣。PREPOSITION➤across the spectrum在整個範圍內◇There was consensus across the political spectrum.政壇各界人士達成了共識。➤spectrum of⋯的範圍◇a wide spectrum of interests廣泛的興趣PHRASES➤at one end of the spectrum, at the other end of the spectrum範圍的一端／另一端▸➤both ends of the spectrum, opposite ends of the spectrum範圍的兩端；對立的兩極◇The two speakers were chosen to represent opposite ends of the spectrum.選出的兩個發言人分別代表對立的兩極。➤a spectrum of opinion一系列的觀點◇The newspaper covers a broad spectrum of opinion.這份報紙報道各種觀點。
TOEFL IELTS BNC: 3581 COCA: 3893
spectrum noun
⇨ range 2
TOEFL IELTS BNC: 3581 COCA: 3893
spectrum
Everything and including everything: everything, whole, all...
General words for colour and relating to colour: chromatic, col, coloring...
Television and radio waves: airwaves, frequency, hertz...

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