In the so-called Spanish flu epidemic of 1918-1919, three waves of disease swept the world, killing approximately 50 million people, including 500, 000 Americans.

1918年至1919年间，一种名为“西班牙流感”的传染病分三波席卷了全球，致死人数约五千万，其中包括50万美国民众。

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Nearly one out of every three people in the world (approximately 2 billion people) has been infected by HBV, and one in twelve (more than 520 million people) live with chronic HBV or HCV infection.

全世界每三人中就有将近一人感染乙肝病毒(约20亿人)，而每十二人中就有一人(5.2亿多人)的生活与慢性乙型肝炎或慢性乙肝病毒感染相伴。

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Paleontologists found that amongst the 39 million year old fossils there were three distinct families of anthropoid primates, all of whom lived in the area at approximately the same time.

古生物学家发现，在这些三千九百万年前的古老化石中，有三个特征不同的类人猿家族，它们都在同一时期生活在这一地区。

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The Big Three have produced approximately six million vehicles now on America's highways that are equipped with what is known as a Flexible Fuel Vehicle (FFV) capability.

CENTERFORSECURITYPOLICY: The Autos' perfect storm

Increasing the retention of STEM majors to just 50 percent would generate approximately three-quarters of the targeted 1 million additional STEM graduates over the next decade - adding approximately 75, 000 more STEM graduates with bachelor or associate degrees each year.

WHITEHOUSE: One Decade, One Million more STEM Graduates

The division has 6 flat and long production facilities in three countries and shipped approximately 13 million tons of steel in 2010.

FORBES: How ArcelorMittal Gets To $41