| 单词 | biennium |
| 释义 | biennium /buy en"ee euhm/, n. , pl. bienniums, biennia /-en"ee euh/. a period of two years. [1895-1900; < L, equiv. to bi- BI-1 + -enn- (comb. form of annus year) + -ium -IUM] |
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