A rock is an inanimate object.

岩石是无生命的物体。

《牛津词典》

He was a drummer in a rock band.

他曾是一支摇滚乐队里的鼓手。

《柯林斯英汉双解大词典》

I stumbled over a rock.

我在石头上绊了一下。

《牛津词典》

Dean Fidelman said that he believes a climber's ego can be his worst enemy on a rock.

VOA: special.2009.12.09

That's not the whole song and dance that you went to a building and you threw up a rock or anything.

不是你又蹦又跳地跑到楼顶,然后往下扔了块石头

耶鲁公开课 - 基础物理课程节选

How many of you play in a rock band or have ever played in a rock band?

你们中有哪些参加了摇滚乐队的演出,或者曾经参加过摇滚乐队的

耶鲁公开课 - 聆听音乐课程节选

"I'd never heard lyrics to a rock song like that before, " Manzarek told Billboard in 1967.

NPR: Manzarek, Founding Member Of The Doors, Dies At 74

It means the health service is caught between a rock and a hard place.

BBC: Where next for the NHS?

He was living in Mill Valley then, playing bass in a rock band called Stick Figures.

NEWYORKER: The Martian Chroniclers