单伟建曾在位于费城的宾夕法尼亚大学沃顿商学院担任教授，他说：“我们不像许多同行那样在追踪泡沫。”
"We are not chasing bubbles as many of our peers do," said Mr. Shan, a former professor at the Wharton School of the University of Pennsylvania in Philadelphia.
单伟建曾在位于费城的宾夕法尼亚大学沃顿商学院担任教授，他说：“我们不像许多同行那样在追踪泡沫。”
"We are not chasing bubbles as many of our peers do," said Mr. Shan, a former professor at the Wharton School of the University of Pennsylvania in Philadelphia.
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