An older generation of stars is called Population II, and an earlier generation of Population III may have existed, although no members of this generation are known yet.

更老的恒星称为ii类恒星，更早一代的II i类恒星也有可能存在，虽然我们现在还没有发现。

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Berlin, December 1948: With German cities in ruins after World War II and the country's male population decimated, it fell to the women to clean up the rubble.

1948年月12月，柏林：德国城市在二战后成为了一片废墟，男丁数目减少，清理废墟的任务就落到了女人们头上。

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A town of northeast Newfoundland, Canada. Its airport was strategically important during World War II and was long used as a refueling stop for transatlantic flights. Population, 10,404.

位于加拿大纽芬兰东北部的一座城市，在第二次世界大战它的机场具有重要的战略性，并且被长期作为穿越大西洋飞行的燃料供给站。人口10,404。

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With the young age of the population at that time (the US was still an emerging market, ) and additional culling of the population by World War II, not many people tapped into the social security system.

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Puerto Ricans have been migrating to the United States since the 1800s, but it wasn't until World War II that this population movement peaked.

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Kansas City is one of only 15 cities with a population of at least 200, 000 in 1950 that saw substantial population losses since World War II but have rebounded in recent years, according to an analysis of U.S. Census Bureau data by Jordan Rappaport, an economist at the Federal Reserve Bank of Kansas City.

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