| 词汇 | spectrum |
| 词根词缀 | 词源： 1611, "apparition, specter," from L. spectrum "appearance, image, apparition," from specere "to look at, view" (see scope (1)). Meaning "band of colors formed from a beam of light" first recorded 1671. Spectroscope (1861) is a hybrid, with Gk. -skopion, from skopein "to look at, examine," which is from the same PIE root as spectrum. 词根记忆： n. 谱,光谱,频谱;范围,幅度,系列The respectful spectator gave the prospective president a retrospect of the spectacular spectrum.恭敬的旁观者对未来的总统回顾了壮观的光谱(景象). |
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