亚历山大图书馆，为什么是古代宝库？

The Great Library stood in Egypt long ago. 很久以前，亚历山大图书馆在埃及。 It kept hundreds of thousands of scrolls. 它收藏了几十万卷书卷。 Scholars from everywhere came to read. 各地的学者都来这里读书。 It was the knowledge center of the old world. 它是古代世界的知识中心。 Sadly, the library was lost in fires. 可惜，它后来毁在了大火里。 But people still remember its great fame. 但它的大名一直留到今天。