Four hundred years ago, the number was over 500 million.

四百年前，这个数量就超过了五亿。

youdao

Age estimates ranging from four billion years for Mars's southern highlands to a few hundred million years in the youngest volcanic areas were obtained in this way.

通过这种方法，科学家们获得了火星南部高地40亿年到最年轻的火山地区（几亿年）的年龄估计数。

youdao

The World health Organization says more than four hundred fifty million people suffer from poor mental health. The most common disorders are depression and schizophrenia.

世界卫生组织(World Health Organization)称，超过4亿5000万的人口患有轻微心理健康疾病，最常见的是抑郁症和精神分裂症。

youdao

The winners in each area of science will share a prize valued at one million four hundred thousand dollars.

VOA: special.2009.12.08

So shortly after 9/11 the Government made a contract to a company called Acambis to make four hundred million doses of smallpox for $343 million dollars.

11后不久 政府与一个叫做,阿坎比斯的公司签订了合约,目的是用3.43亿美元,制造四亿支天花疫苗

耶鲁公开课 - 生物医学工程探索课程节选

As of last weekend, the movie had earned more than three hundred thirty-four million dollars in ticket sales.

VOA: special.2009.06.12

Ferozi told me that the bank gave the Karzai campaign four million dollars, meaning that the two hundred thousand dollars in the briefcase described by Zakhilwal was just the beginning.

NEWYORKER: The Afghan Bank Heist

By December, 2008, the Sterling partners had about four hundred million dollars in Sterling Stamos accounts and about five hundred and fifty million with Madoff.

NEWYORKER: Madoff��s Curveball

Today the annual clip value of the NBA Archives is pegged at four hundred million dollars a year.

FORBES: 3 Executives to Watch in 2013