This Contract shall be written in English in four copies. Each party shall keep two copies.

本合同应以英文写成，一式四份，双方各持两份。

youdao

It has since become the fastest-selling album in British history, with more than 3.1million copies bought in its first four weeks.

去年11月发行的这张专辑是英国唱片史上卖得最快的专辑，在最初的四个星期里就卖出了310万张。

youdao

Referee: Each set of the form consists of four copies, please check before handing in.

裁判长：每份表都是一式四份，请在上交前检查清楚。

youdao

It has since sold eighty million copies in forty-four languages.

VOA: special.2009.10.09

It was only sixty-four pages, but it sold a hundred and fifty thousand copies in four months.

NEWYORKER: The Lie Factory

The Windows 8 launch has been seen by the company as a great success, moving Microsoft into the new touchscreen mobile era, with Steve Ballmer celebrating the sales of four million copies in just three days.

BBC: Windows boss shown the door

Whether that's a lot or a little depends entirely on your frame of reference -- after all, four million copies of the OS upgrade were sold in the first four days.

ENGADGET: Start button utility strips even more '8' from Windows 8, has sold 'tens of thousands' of copies