billion [名詞] (美國)十億
billion
['biljən]
n.十億
例句與用法：
Some computers can perform over a billion computation a second.
有些計算機一秒鐘能完成超過十億次運算。
As a rule of thumb, a one-cent-a-gallon gasoline tax raises$1 billion. Oil producers in President-elect Bush's adopted state of Texas, however, would rather see a tax on imported crude oil.
一般情形是，每加侖加汽油一分錢的稅可以徵收10億元。可是，在布什第二家鄉德克薩斯州的產油商寧願看見在進口原油上徵稅。
The human brain contains several billion nerve cells, which are connected with one another by fine nerves.
人類的大腦含有幾十億個神經細胞，這些細胞由纖細的神經將彼此連接起來。
It took them more than one billion dollars to complete the project.
完成這個工程花費了他們十億多美元。
英文解釋:
名詞 billion:
the number that is represented as a one followed by 12 zeros; in the United Kingdom the usage followed in the United States is frequently seen
同義詞：one million million, 1000000000000
a very large indefinite number (usually hyperbole)
同義詞：million, trillion, zillion, jillion
the number that is represented as a one followed by 9 zeros
同義詞：one thousand million, 1000000000
形容詞 billion:
denoting a quantity consisting of one thousand million items or units in the United States
denoting a quantity consisting of one million million items or units in Great Britain
以上來源於大辭典
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