英 [ˌsiː ˈəʊ] 美 [ˌsiː ˈoʊ]
n. 切断
an odorless very poisonous gas that is a product of incomplete combustion of carbon
同义词： carbon monoxide / carbon monoxide gas / CO
a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition
同义词： cobalt / Co / atomic number 27
one who refuses to serve in the armed forces on grounds of conscience
同义词： conscientious objector / CO
a state in west central United States in the Rocky Mountains
同义词： Colorado / Centennial State / CO
... C-H碳-氢键 C-O切断 c-slotC型槽 ...
... C-C（碳-碳键） C-O（碳-氧键） C-N（碳-氮键） ...
...编》2008年 通过ICF和ECF计算体脂(fat mass,FM)、非脂组织(fat free mass,FFM)以及碳水化合物氧化率(Carbohydrate oxidation,C-O)、脂肪氧化率(Fat oxidation,F-O),比较两组间的差别,REE测量值还需与Harris..
... 向后增量搜索历史命令, 非常方便, 严重推荐, 有了它, 以前输入过的很长的命令, 可以不用重复输入C-r 循环执行历史命令C-o 从当前光标处向前搜索字符C-] ...
切断
Under the ship, he printed in big red letters: C-O-N-G-R-A-T-U-L-A-T-I-O-N-S!
在船下面，他用红色大字写着：C-O-N-G-R-A-T-U-L-A-T-I-O-N-S！
It's www dot C-O-M-P-4-S-S dotcom.
网址是 www.comp4ss.com。
'I think it is C-O-L-E-H-D,' he says.
“我想是C - O - L - E - H - D吧”，他说。
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
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。
计算机科学课程节选 : 哈佛公开课
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，
SpeakingMax英语口语达人 : 美式英语和英式英语
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 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
Yet there it is, on signs and over storefronts, in big, bold letters: C-O-M.
Is that Meco or M-E-C-O?
Liberals think they smell more than a little H-Y-P-O-C-R-I-S-Y.