The belayer then gives more rope up to the lead climber as he moves up the rock.

VOA: special.2009.12.09

So because so much popular music and particularly rock music has those chords in root position we can track them more readily.

因为很多流行音乐尤其是摇滚乐会在原位上添加这样的和弦,这样听起来会比较悦耳。

耶鲁公开课 - 聆听音乐课程节选

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

They collected more than thirty kilograms of rock and soil to take back to Earth.

VOA: special.2009.07.15

Below,the flowing river continued to uncover more and more levels of ancient rock.

VOA: special.2009.10.07

That is more than in past rock climbing studies.

VOA: special.2009.12.09

"If you turn on the radio you can find something you like, whether you like things that are more contemporary Country, or you find more things that are traditional Country or more rock-influenced."

VOA: standard.2009.12.15