Indian civilization is one of the oldest in the world, and many empires have risen and fallen on the subcontinent throughout the centuries.
印度文明是世界上最古老的文明之一，而且多个世纪以来，已经有许多帝国在印度次大陆上盛衰沉浮。
Some great empires have crumbled and fallen.
一些大帝国已崩溃衰落了。
Some great empires have crumbled and fallen.
一些大帝国已崩溃衰落了。
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