| 词汇 | bluebird |
| 词根词缀 | 词源： 1680s, N.Amer. warbler-like bird, from blue in reference to its plumage + bird. Figurative use in bluebird of happiness is from 1909 play romance "l'Oiseau bleu," lit. "The Blue Bird," by Belgian dramatist and poet Maurice Maeterlinck (1862-1949). |
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