The next day, they realized that the sand and natron under the fire had melted then cooled into glass.

VOA: special.2009.09.16

He turned this way and that, and, seeing no one about; he struck down the Egyptian and hid him in the sand.

他左右观看，见没有人;,就把埃及人打死了，藏在沙土里。

耶鲁公开课 - 旧约导论课程节选

There is something that one might be able to hold on to: the knob of something, the little flame of something that ; The grain of sand. -The grain of sand; but there is really not a decent metaphor for it, I think.

一个你可以依靠的支点：,一个不同寻常的想法，一个思想的小火花,就像一粒沙中看世界，-一粒沙中看世界;,不过我认为任何比喻都不够贴切。

普林斯顿公开课 - 人性课程节选

Instead,you should use sand from rivers or from other areas of land that are not near the sea.

VOA: special.2009.09.14

Hundreds of the islands are only pieces of sand that extend a few feet out of the water.

VOA: special.2010.03.22

They knew that the black line was formed by trees, and the white line was the sand.

VOA: special.2010.03.06

This sea wall is built right into the hills of sand that make up the coast.

VOA: special.2009.06.01

Portland cement is a material that holds together the sand and crushed stone in concrete.

VOA: special.2009.12.01

Many of the animals that live in the sand dunes have become white.

VOA: special.2010.01.04

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

This plant turns debris from buildings - many destroyed by Israeli air strikes - into sand and gravel that is then turned into cinder blocks for building.

VOA: standard.2010.06.16

Engineers have found that wetlands, grassy fields and soil or sand filters can take in stormwater with different levels of pollution and release water with a relatively constant cleanliness.

VOA: standard.2010.08.04