大災難的英文是catastrophe。
雙語例句：
1
驅逐成千上萬人意味著人道主義的巨大災難。
The expulsion of thousands of people represents a humanitarian?catastrophe?of enormous proportions.
2
真是壹場大災難！
What a complete?catastrophe!
3
然而，對於壹種生物種群而言是大災難的事件，卻有可能給另壹種生物種群創造機會。
What is a?catastrophe?for one group of living things, however, may create opportunities for another group.
4
他推測有些人也許能察覺到重大災難。
He conjectured that some individuals may be able to detect major calamities.
5
這形勢本來是很可能成為壹場大災難的。
The situation might all too easily have become a disaster.
6
沒有人預測到那些變化會變成壹種大災難。
Few had expected that change to be as cataclysmic as it turned out to be.