预约成功
billion
n.十亿
用作名词 (n.)
It took them more than one billion dollars to complete the project.
完成这个工程花费了他们十亿多美元。
Some computers can perform over a billion computation a second.
有些计算机一秒钟能完成超过十亿次运算。
The human brain contains several billion nerve cells, which are connected with one another by fine nerves.
人类的大脑含有几十亿个神经细胞，这些细胞由纤细的神经将彼此连接起来。
