| 词汇 | sporadic |
| 词根词缀 | 词源： 1650s (implied in sporadical), from M.L. sporadicus "scattered," from Gk. sporadikos "scattered," from sporas (gen. sporados) "scattered," from spora "a sowing" (see spore). Originally a medical term, "occurring in scattered instances;" the meaning "happening at intervals" is first recorded 1847. Related: Sporadically. |
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