| 单词 | billion |
| 释义 | billion n. & adj. --n (pl. same or (in sense 3) billions) (in sing. prec. by a or one) 1. a thousand million (1,000,000,000 or 10(9)). 2. (now less often, esp. Brit.) a million million (1,000,000,000,000 or 10(12)). 3. (in pl.) colloq. a very large number (billions of years). --adj that amount to a billion. Derivatives billionth adj. & n. Etymology: F (as BI-, MILLION) |
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