These are special chemicals, colorings or tastes that counterfeiters could not easily copy.

VOA: special.2010.03.01

You can make multiple--you can put three or four-- the copy gets worse and worse each time, but you've got multiple copies.

你也可以复写多份，放上三四张复写纸-,不过越往下复印的效果会越差，但终归你还是有了多份副本。

耶鲁公开课 - 金融市场课程节选

and so they just, knowingly or unknowingly, they steal and copy what someone else has already said.

所以他们就，有意识或无意识地，偷窃或者拷贝别人说过的东西。

抄袭是很严重的问题 - SpeakingMax英语口语达人

Or they might keep the copy and send the original off to somebody.

或者他们保留抄写本,而把原始书信送给他人。

耶鲁公开课 - 新约课程节选

The Greeks are in touch with them again and they borrow styles, copy styles, maybe in the early day they used some of the craftsmen from out there or maybe their own craftsmen picked it up.

希腊人又一次与他们接触了,借鉴并复制了他们的风格,也许在早期他们雇佣一些那些地方的工匠,或者让他们自己的工匠学习

耶鲁公开课 - 古希腊历史简介课程节选

It's called cDNA or complimentary DNA to indicate that it's a copy, a complimentary copy of the messenger RNA.

它叫cDNA或者互补DNA,意味着它是一个拷贝,一个信使RNA反转录得出的DNA拷贝

耶鲁公开课 - 生物医学工程探索课程节选

This particular copy was pretty dog-eared; As a matter of fact, it was a paperback copy and I think it was in about eight or ten different pieces and the people that threw this party remembered that, so they gave me it at this celebration.

我用过的那本已经翻烂了,实际上,那是本平装版,我想书脊也不知断了八处还是十处,组织派对的人还记得,在派对上把这本书给了我作纪念

耶鲁公开课 - 金融市场课程节选

It's only copying the address that was returned by get string so even though conceptually is the name this program suggests, I really just want to make a copy so that maybe I can make one version of D-A-V-I-D or F-O-O all uppercase or all lowercase or I want to spell check, something.

而只是复制GetSting返回的地址,虽然这个程序表示的名称，我只想做一个拷贝,以便我可以做一个D-A-V-I-D或者F-O-O的版本,大写的或者小写的,或者拼写检查之类的。

哈佛公开课 - 计算机科学课程节选

When you think about a gene or a transcript, the messenger RNA copy of a gene, you know that for every sequence of a nucleic acid there's a complimentary sequence.

当你们考虑一段基因或者一个,转录一段基因的mRNA拷贝,你们知道每个核酸序列,都有互补序列

耶鲁公开课 - 生物医学工程探索课程节选