Lack of space in Athens is the main reason why the dead are dug up after three years.

在雅典，尸体埋葬三年后就要被挖出的主要原因是用地不足。

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The other reason why costs are so high is the restrictive guild-like ownership structure of the business.

成本如此之高的另一个原因是行业协会具有约束性的所有权结构等限制性因素。

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The most controversial aspect of Marconi's life and the reason why there has been no satisfying biography of Marconi until now was his uncritical embrace of Benito Mussolini.

马可尼一生中最具争议的方面，以及直到现在都没有令人满意的马可尼传记的原因，就是他对贝尼托·墨索里尼不加批判的信奉。

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They say their findings offer one reason why the custom of cursing may have continued for so long.

VOA: special.2009.08.18

The reason why literacy is required of everyone is because we don't live to 200.

为何每个人都需要文化素养？,因为我们活不到200岁,我们出于对外界的好奇。

麻省理工公开课 - 媒体、教育、市场课程节选

I think the reason why triathlon is not so, so big is just because it requires a lot of time.

我认为铁人三项运动之所以不够普及，
是因为它需要大量的时间。

对体育项目的热爱 - SpeakingMax英语口语达人

Regional banks are also under pressure from the overhang of the commercial real estate downturn, part of the reason why management commentary will be just as, if not more, important than second-quarter figures.

FORBES: Earnings Season

And here lies the problem with Armstrong, and the heart of the reason why his story will never really fade away: He is the ultimate paradox, the sinner and the saint.

FORBES: Despite The Fresh Evidence Of Doping, Lance Armstrong Will Ride On With The Esteem Of Many

The reason why Roger does not know the meaning of the word hangover is the same reason why his cider is so revered, why people will travel 400 miles to sit in his draughty farmhouse.

BBC: England's West Country: Still the apple of our eye