Automobiles create it. Any device that burns fuels like coal,gasoline,kerosene, oil or wood will produce carbon monoxide.

VOA: special.2010.02.02

This will be the definition of the mole as the amount of carbon weighing exactly 12 grams, so I would like to know now how many particles, how many carbons are there in that mole.

摩尔的定义就是,12克的碳的数量，我想知道有多少粒子，一摩尔会有多少碳粒子。

麻省理工公开课 - 固态化学导论课程节选

You have a molecule where we put the carbon in the center, and we go up like this, like this, and out the back.

你有一个分子,我们把碳放在中间，现在我们得到了。

麻省理工公开课 - 固态化学导论课程节选

The facility in Arcadia is expected to help power 3,000 homes, at its peak,and do so without producing carbon emissions, like traditional coal-fired plants.

VOA: standard.2009.10.27

They'd like to be able to refer to each carbon separately so they can talk about reactions with this molecule, so they number the carbons.

为了在探讨这种大分子的,化学反应时能清楚地,表示每一个碳原子,人们对碳原子进行了编号

耶鲁公开课 - 生物医学工程探索课程节选

India points to the aspirations of millions of poor people like Rakesh in sprawling urban slums and villages when it refuses to commit to any caps on its carbon emissions.

VOA: standard.2009.11.27

And so, if we go and we draw this again, if this is the carbon here, hydrogen, hydrogen, hydrogen, hydrogen like this, then this is going to be a little bit plus.

如果我们继续，我们将再次画下这个，如果这儿是碳，氢，氢，氢，氢，就像这样，这里有些正电荷。

麻省理工公开课 - 固态化学导论课程节选

But climate change negotiators worry that without quick action, the carbon footprint of countries like India and China will rise dramatically as their fast-growing economies propel millions into the middle class.

VOA: standard.2009.11.27

China has acknowledged the need to limit its carbon emissions, but argued that greater responsibility falls on advanced industrialized nations like the United States, which produced large quantities of greenhouse gases for decades before China's rise as a global economic power.

VOA: standard.2009.11.26