billion
/ˈbɪljən/
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num. 十億
- There are about eight billion people in the world today. 現在全世界大約有八十億人。
其他意思
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If you talk about billions of people or things, you mean that there is a very large number of them but you do not know or do not want to say exactly how many.
- Biological systems have been doing this for billions of years
也出現在：