The only evidence was cut into a tree and a fence: the letters C-R-O and the word Croatoan,C-R-O-A-T-O-A-N.

VOA: special.2009.08.17

And the last example that we're going to talk about is thionyl chloride, so it's s o c l 2. This is another good step forward, because now we actually have four different atoms in our molecule.

我们要讨论的最后一个例子,是氯化亚砜，就是硫，氧，氯，二，这又是一个进步，因为我们的分子中现在有四个不同的原子了。

麻省理工公开课 - 化学原理课程节选

It's like they spell colour, c-o-l-o-r, we spell it c-o-l-o-u-r,

这就像他们拼写颜色这个单词，c-o-l-o-r，而我们拼写成c-o-l-o-u-r，

美式英语和英式英语 - SpeakingMax英语口语达人

"By two thousand and twenty, C.O.P.D.will likely be the third leading cause of death across the world."

VOA: special.2009.06.23

So I show that here, so in green, you have what's called a carboxcylic acid group, a c o o h, which gets converted by s o c l 2 to a c double bond o c l or an acid chloride.

我在这里用绿色表示，我们所说的羧酸族化合物，碳，氧，氧，氢，它被亚硫酰氯转化为,一个碳氧双键与碳氯单键组成的酰氯。

麻省理工公开课 - 化学原理课程节选

The team examined results from a Norwegian study of more than nine hundred people with C.O.P.D.

VOA: special.2009.06.23

GCC hello c So you see two similarities between the first version, GCC hello.c, and the second version but obviously I've just added which part for that second line.

你将会在第一个版本,和第二个版本GCC，-o，hello，hello，c之间，看到两点相似之处,很显然我们在第二个版本的第二行添加了一些东西。

哈佛公开课 - 计算机科学课程节选

The team examined results from a Norwegian study of nine hundred fifty-four people with C.O.P.D.

VOA: special.2009.06.03

The United Nations agency UNESCO created the Intergovernmental Oceanic Commission, or I.O.C.,in nineteen sixty.

VOA: special.2009.03.17

Doctor Soerheim says they show that women suffered the same severity of C.O.P.D.as men.

VOA: special.2009.06.03

"But this has raised concern that O.E.C.D countries were mainly exporting their shortage problem to countries that may have an even greater need for these nurses."

VOA: special.2010.06.07

She says they show that women suffered the same severity of C.O.P.D.as men.

VOA: special.2009.06.23

"Let me just explain in very simple terms what synthetic C.D.O.s are.

VOA: special.2010.04.30

The I.O.C.says its efforts are the beginning of a worldwide tsunami-warning program.

VOA: special.2009.03.17

The United States is one of thirty-one countries in the O.E.C.D Gaetan Lafortune says in recent years many of the countries increased their efforts to hire foreign nurses.

VOA: special.2010.06.07

Senator Claire McCaskill described synthetic C.D.O.s during a Senate subcommittee hearing.

VOA: special.2010.04.30

It was a short way of writing a different spelling of the words all correct. Some foreign-born people wrote all correct as o-l-l k-o-r-r-e-c-t, and used the letters O.K.

VOA: special.2010.02.28

(JOSH BIRNBAUM) "Our desk began to accumulate short positions, purchasing protection on individual securities through credit default swaps, largely from external C.D.O.managers who asked us to bid for these positions."

VOA: special.2010.04.30

C.O.P.D.,chronic obstructive pulmonary disease, blocks airflow through the lungs.

VOA: special.2009.06.03

C.O.P.D.is a new name for emphysema and chronic bronchitis.

VOA: special.2009.06.23

In both cases, women had more severe C.O.P.D.

VOA: special.2009.06.23

Many people with C.O.P.D.have both of them.

VOA: special.2009.06.03

In both cases,women had more severe C.O.P.D.

VOA: special.2009.06.03

Josh Birnbaum was involved in synthetic C.D.O.s.

VOA: special.2010.04.30

Many people with C.O.P.D.

VOA: special.2009.06.23

Mosaic is spelled m-o-s-a-i-c.

VOA: special.2009.01.02

That's m-a-c-a-r-o-n.

VOA: special.2010.04.12

C-A-T-W-O-M-A-N."

VOA: special.2009.06.07

This is a new company record. If it wasn't a waste of a fine enlisted man, I'd recommend you for O.C.S.,Private Gump.

VOA: standard.other

In the Washington area, the C&O Canal still holds water.

VOA: standard.2010.04.29