约翰·内斯·古登堡的印刷机被认为是世界上最伟大的发明。
Johannes Gutenberg's printing press is considered one of the world's greatest inventions.
但是他们近两年一直在试图交易古登和休斯，事实上他们的交易也是物有所值。
But they've been trying for two years to trade Gooden and Hughes; the fact they got something so worthwhile from the exchange is amazing.
他的首席经济顾问是芝加哥大学一名受人尊敬的年轻学者，奥斯登•古尔斯比。此人明智务实。
His chief economic adviser, a respected young academic called Austan Goolsbee of the University of Chicago, is sensible and pragmatic.
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