On June sixth,nineteen thirty-three, workers poured the first load of a building material called concrete.

VOA: special.2009.08.12

And so, when you think about how much cement concrete are consumed annually on the planet, this becomes a considerable point source of greenhouse gas emissions.

当你想到,在地球上每年要消耗多少的水泥混凝土的时候,这将是温室气体排放的,一个主要来源。

麻省理工公开课 - 固态化学导论课程节选

One concrete outcome of the Conference will be to formalize, to institutionalize it so that users can rely on that information.

VOA: standard.2009.08.31

It aims to come up with concrete action plans to present to the G8 that would boost agricultural investment on many levels.

VOA: standard.2010.03.29

Moments later she slaps the fabric down on concrete and squeezes out the water with her toes.

VOA: standard.2010.04.14

If the peace prize was awarded to cheer ongoing efforts, some are suggesting it will increase pressure on President Obama to deliver concrete results on the world stage.

VOA: standard.2009.10.09

Still,Mr.Obama's critics say his trip to China will be a test of whether the U.S and China can develop better ties, and whether American acquiescence on some issues will produce concrete results on others.

VOA: standard.2009.11.10

It's really been in the wake of the al-Mabhouh thing that the talk has really translated into concrete action and some of these governments have really started to get very tough on RIM, the company behind BlackBerry.

VOA: standard.2010.08.11