brain drain, 人才外流

Quantifying and transforming the history of culture into visual representation isn’t easy, the researchers said.
There are thousands of individual stories, across thousands of years, to consider, and some historical conditions are nearly impossible to measure.
Europe's brain drain in action: Incredible animation shows great cities emerging as intellectuals and artists move across the world | Mail Online
Read more: http://www.dailymail.co.uk/sciencetech/article-2713767/Europe-s-brain-drain-action-Incredible-animation-shows-great-cities-emerging-intellectuals-artists-world.html#ixzz39GebinGm
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Human capital flight - Wikipedia, the free encyclopedia
Human capital flight (also known as brain drain)
http://en.wikipedia.org/wiki/Human_capital_flight
人才外流 - 維基百科，自由的百科全書
http://zh.wikipedia.org/wiki/%E4%BA%BA%E6%89%8D%E5%A4%96%E6%B5%81
美国习惯用语 - Lesson 180 - brain drain - brain trust
http://www.unsv.com/voanews/words-and-idioms/lessons/180/
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