billion
billion
(pl. billions, 与数词连用时复同单)
billionth
ordinal number
语源
(pl. billions, 与数词连用时复同单)
- the number equivalent to the product of a thousand and a million; 1,000,000,000 or 109
十亿
a world population of nearly 5 billion.
将近50亿的世界人口。
half a billion dollars.
五亿美元。
■(billions)(informal)a very large number or amount of something
(非正式)大量的，无数的，亿万个
our immune systems are killing billions of germs right now.
我们的免疫系统此刻正在杀灭亿万个细菌。
■a billion pounds or dollars
十亿英镑（或美元）
the problem persists despite the billions spent on it.
尽管花了数十亿英镑，问题依然存在。
■(dated, chiefly Brit.)a million million (1,000,000,000,000 or 1012)
(旧， 主 英)一万亿
billionth
ordinal number
语源
- late 17th cent.: from French, from million, by substitution of the prefix bi- 'two' for the initial letters
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