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1·She retained a number of copies for further annotation.

她为进一步解释保留了好多复印件。《柯林斯英汉双解大词典》

2·An unlimited number of copies can still be made from the original.

无限量的复制品依然能从原物制作出来。《柯林斯英汉双解大词典》

3·Number of copies and page range to print.

设置打印拷贝数和页面范围的参数。

4·Print run: The number of copies printed.

印数：印了多少份的意思。

5·Judging by the number of copies sold the book is a great success.

从卖出的册数来看，这本书是极成功的。

6·Gene dosage — the number of copies of a particular gene in the genome.

基因组中一个特定基因的拷贝数。

7·Right, but what if you want to change the paper size or the number of copies?

对，可如果你要改变纸的尺寸或打印份数呢？

8·Thus, the number of pages used is the number of pages printed times the number of copies sent.

因此，使用的页面数量就是打印的页面数量乘以发送的拷贝数量。

9·And the fewer number of copies will result in a significant reduction in reliability of the system.

而较少的副本数量又会导致系统的可靠性显著降低。

10·His job at the Patent Office in New York required him to make a large number of copies of important papers.

他的工作在专利局在纽约要求他作出了许多重要文件的副本。