| 词汇 | septuagenarian |
| 词根词缀 | 词源： septuagenarian (adj.) "seventy-year-old," 1793, from L. septuagenarius "containing seventy," from septuageni "seventy each," related to septuaginta "seventy" (see Septuagint). Noun meaning "a 70-year-old person" first recorded 1805. |
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