The material can be copied without infringing copyright.

Tape is expensive and loses sound quality every time it is copied.

磁带成本高，而且每录制一次音质就会变差一些。

Instructors read slowly and students copied down what was said.

老师慢慢地念，学生们把所念的记下来。

Most have slavishly copied the design of IBM'sbig mainframe machines.

大多数公司都一味模仿IBM公司大型主机的设计。

Copies of the CD can be purchased at cost price.

这光盘可按成本价购买。

Bootleggers sold 75 million dollars-worth of copies.

非法书商们售出了价值7,500万美元的盗版书。

We have six copies of the book to give away.

这本书我们要赠送6本出去。

Don't resort to cheap copies; save up for the real thing.

别买廉价的仿冒品，攒点钱买正品吧。

Pirate copies of the video are already said to be in Britain.

该录像带的盗版版本据说已在英国出现。

His books have sold more than 20 million copies worldwide.

他的书在全世界已经售出两千多万本。

Harold had all the copies collected up and burned.

哈罗德把所有的书收在一块，全烧了。

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

仍可以由原件复印出无数份副本来。

Bacteria reproduce by dividing and making copies of themselves.

细菌通过分裂和自我复制来繁殖。

Copies of the local daily had been scattered on a table.

几份当地的日报散放在桌子上。

His autobiography has sold more than 36,000 copies in hardback.

他的自传精装本已经卖出了36,000多册。

Fill out the application carefully, and keep copies of it.

仔细填写申请表，并且保存副本。

Pirated copies of music tapes are flooding the market.

盗版音乐带正充斥市场。

She retained a number of copies for further annotation.

她保留了许多副本以便作进一步的注解。

The publisher expected the book to sell 1,500 copies, tops.

出版商预计该书至多能卖出1,500本。

Do me a favour , while you're about it, buy me a copy too.

请帮个忙, 就便也替我买一本.

Please make a fair copy of the manuscript.

请把稿件抄一下.