Persian civilization remained both intellectually and artistically admirable until the invasion of the Mongols in the thirteenth century, from which it never recovered.

波斯文明在智力和艺术方面一直是令人赞羡的。但自从十三世纪遭受蒙古入侵后便一蹶不振了。

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As I have said for many years throughout this land, we're borrowing money from China to buy oil from the Persian Gulf to burn it in ways that destroy the future of human civilization.

NPR: Transcript: Al Gore's Speech