Huge digging machines and crushers were needed to get the gold from the rock.

VOA: special.2009.05.28

We get great Mahler symphonies yet we have everybody sitting there rock-still at these concerts.

我们拥有伟大的马勒交响曲的同时,也要求大家在音乐会上要坐得像块石头

耶鲁公开课 - 聆听音乐课程节选

Men had to dig into the mountains of rock to get it.

VOA: special.2009.05.28

The ash clouds include particles of rock, glass and sand that can get into an aircraft's engine and cause it to stall.

VOA: standard.2010.04.17

Lieutenant Dan was alwaysgetting these funny feelings about a rock or a trailor the road, so he'd tell usto get down, shut up.

VOA: standard.other

But it is not easy to get at. Specks of gold embedded in the mountain rock can only be extracted by blasting and crushing the rock to powder.

VOA: standard.2010.04.22