The earliest process of making paper was done almost five thousand years ago in Egypt and the Nile Valley.
VOA: special.2009.07.06
And, in the final development of your paper, making sure that those two can relate to one another.
还有,在你们论文的最后发展,保证,那两点之间是相互联系的。
The earliest process of making paper was done almost 5,000 years ago in Egypt and the Nile Valley.
VOA: special.2009.01.26
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