在城市工作的一年拓宽了他的视野。
Spending a year working in the city helped to broaden his horizons.
希望我们可以通过阅读获得知识，这不仅拓宽了我们的视野，也使我们更聪明，更快乐。
Hopefully, we can get knowledge through reading, which not only broadens our horizons but also makes us cleverer and happier.
尽管彼得罗斯基博士承认，由于设计工程项目或实施项目的人会犯错，工程项目可能会失败，但他在这一本书中进一步拓宽了自己的观点，将更多可能导致失败的因素考虑了进来。
Though he acknowledges that engineering works can fail because the person who thought them up or engineered them simply got things wrong, in this book Dr. Petroski widens his view to consider the larger context in which such failures occur.
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