| 单词 | billion |
| 释义 | billion ['bɪl.jən] noun countable IMPROVER ■the number 1 000 000 000 十亿 •Cosmetics is a billion dollar industry.化妆品行业是个价值十亿美元的产业。 ■UK old-fashioned ■1 000 000 000 000 一万亿 a billion/billions of sth informal ■a very large number （数目）非常多 •There were billions of flies everywhere.到处都有许多的苍蝇。 ['bɪl.jən] noun countable Common Learner Errors billions (of sth) or billion?When billion is used after a particular number, it is used in the singular form and without 'of'.Don't say 'five/ten/fifteen billions of sth', say five/ten/fifteen billion sth: ✗ The palace cost at least 3 billions of dollars to build.The palace cost at least 3 billion dollars to build.When billion is used without a particular number, it is used in the plural form and is sometimes followed by 'of':The palace must have cost billions (of dollars) to build. |
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