在此之前，他曾任麻省理工学院土木工程系教授。
Prior to this, he was a professor in the Department of Civil Engineering at M. I. T.
他曾任教于普林斯顿大学，在职业生涯中获得多项文学奖。
He has taughtat Princeton University and won multiple literaryawards throughout his career.
曾任采购经理的他，有十分深厚的商业英文底子。
He was a Purchasing Manager, and very familiar with Business English.
曾任采购经理的他，有十分深厚的商业英文底子。
He was a Purchasing Manager, and very familiar with Business English.
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