| 词汇 | specter |
| 词根词缀 | 词源： 1605, from Fr. spectre "an image, figure, ghost" (16c.), from L. spectrum "appearance, vision, apparition" (see spectrum). Spectral is attested from 1815 in the sense of "ghostly" (first recorded in Shelley); 1832 in sense of "of or pertaining to a spectrum." |
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