| 单词 | decennial |
| 释义 | decennial —decennially, adv. /di sen"ee euhl/, adj. 1. of or for ten years. 2. occurring every ten years. n. 3. a decennial anniversary. 4. its celebration. [1650-60; < L decenni(um) a period of ten years (decenn(is) DECENNARY + -ium -IUM) + -AL1] |
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