我的最高目標是拯救美國,摧毀奴隸制度英文怎麼說？

My paramount object is to save the Union and destroy slavery.

任何大國的軍事力量都能摧毀文明世界英文怎麼說？

The armament of any of the great powers could destroy civilization.

這些政治動亂很可能會破壞整個社會結構英文怎麼說？

These political upheavals might well destroy the whole framework of society.