And he wrote one of the most influential books on early jazz, "Mister Jelly Roll."

VOA: special.2010.01.25

But the fact is that I'm sure there are a few people - - thay may be more than a few in the facility - who do feel that rock and roll is not exactly what one says fit and proper.

不过事实上，我相信,在学校里确实有许多人-,认为摇滚和艺术,并不完全相称。

普林斯顿公开课 - 人性课程节选

I got to roll this one myself.

我必须自己把循环转动起来。

哈佛公开课 - 计算机科学课程节选

He is one of the most influential guitarists and songwriters in rock and roll history.

VOA: special.2009.08.07

It is considered one of the greatest rock and roll albums of all time.

VOA: special.2009.11.30

Berman says the legislation would be only one point of pressure on Iran to roll back its uranium-enrichment program, which the United States believes is aimed at producing a nuclear weapon.

VOA: standard.2009.10.28