books that are out of print and still under copyright, but the current holder of that copyright is unknown.

VOA: standard.2009.12.31

My music will be on less than 72 hours after I'm done the record and copyright it.

我录制完音乐，并且拿到版权之后，72小时之内就传上去了。

请听听我的歌 - SpeakingMax英语口语达人

I got a big lecture about copyright laws and this is going to violate most of them.

我上过一次关于版权法的课程,不过这就要违反大多数的版权法了

耶鲁公开课 - 心理学导论课程节选

So let's hear a little bit of this and then we'll stop so they don't sue us for copyright infringement and then we'll go somewhere else and take another chunk.

那么我们听一小段,然后我们就停,免得他们告我们侵权,然后我们又得去找别的段子了

耶鲁公开课 - 聆听音乐课程节选