spectrum
英 ['spektr?m]
美['sp?ktr?m]
- n. 光谱；频谱；范围；余象
CET6TEM8IELTSGRE考研TOEFL中低频词常用词汇
词态变化
复数:?spectrums;?spectra;
中文词源
spectrum 谱，光谱
来自拉丁语 spectrum,出现，显示，影像，鬼魂，幽灵，来自 specere,看，词源同 spectator,aspect. 后与 specter 词义上进行分工，前者用于指鬼，幽灵，该词用于指光谱。
英文词源
- spectrum (n.)
- 1610s, "apparition, specter," from Latin spectrum (plural spectra) "an appearance, image, apparition, specter," from specere "to look at, view" (see scope (n.1)). Meaning "visible band showing the successive colors, formed from a beam of light passed through a prism" first recorded 1670s. Figurative sense of "entire range (of something)" is from 1936.
双语例句
- 1. Politicians across the political spectrum have denounced the act.
- 各党派的政客们都对该行为表示谴责。
来自柯林斯例句
- 2. The two politicians represent opposite poles of the political spectrum.
- 这两位从政者代表了政界的两个极端。
来自柯林斯例句
- 3. The term "special needs" covers a wide spectrum of problems.
- “特殊需求”一词包含的问题范围很广。
来自柯林斯例句
- 4. The political spectrum has broadened.
- 政治范围得到了扩大。
来自柯林斯例句
- 5. A spectrum is formed by a ray of light passing through a prism.
- 一束光通过棱镜就会形成光谱。
来自《权威词典》