The frost last week was a great calamity to the citrus industry.

上周的柑橘种植业是一场大灾难。

The flood was a major catastrophe.

洪水是一场大灾难。

The manorialism, Puritan culture, bloody slavery and the Civil War, which was looked upon as a catastrophe, were rich soil for development of South Gothic novel.

南方的庄园制度、清教文化特别是血腥的奴隶制以在南方人看来是一场大灾难的南北战争是南方哥特小说发展的肥沃土壤。