decennialadj.
英 dɪ'senɪəl | 美 dɪ'sɛnɪəl
中文adj. 十年间的\nn. 十周年纪念
十年间的
n. 十周年纪念
词根词源
decennial (adj.)1680s, from Latin decennium, from decennis "of 10 years," from decem "ten" (see ten) + annus "year" (see annual). For vowel change, see biennial.
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