O

英 [əʊ]

美 [oʊ]

n. 英语字母表的第15个字母; (说电话号码等时表示)零
int. 哦，啊（表示惊讶、痛苦、恐惧、赞叹等）

BNC.7311

牛津词典

noun

英语字母表的第15个字母
the 15th letter of the English alphabet
1. ‘Orange’ begins with (an) O/‘O’.
  orange一词以字母o开头。
（说电话号码等时表示）零
used to mean ‘zero’ when saying telephone numbers, etc.
1. My number is six o double three (= 6033) .
  我的号码是六零三三。

exclamation

英语字母表的第15个字母
Ois the fifteenth letter of the English alphabet.
零
Ois used to mean zero, for example when you are telling someone a telephone number, or mentioning a year such as 1908.
See also:O how mistaken you are!...O God, I want to go home.oh
(用于首字母为o的一些单词的缩写，如 old或organization)
Ois used as an abbreviation for words beginning with o, such as 'old' or 'organization'.

I will cover both dedicated and virtual I/ O ( VIO) systems.
我将涉及专用的和虚拟的I/O（VIO）系统。
Note that you cannot use concurrent I/ O with JFS ( only JFS2).
注意，不能对JFS（只能对JFS2）使用并发I/O。
I have all appointment with him at2 o 'clock.
我和他在两点钟有个约会。
O how mistaken you are!
哎呀，你可大错特错了！
I am Thine, O Lord, I have heard Thy voice.
主啊，我属于您，我已经听见您的声音。
O! The Huanghe ( River), cradle of the Chinese nation.
啊！黄河，你是中华民族的摇篮。
However, it is more specialized to support I/ O tasks.
然而，它提供了对I/O任务的更加具体化的支持。
This is also how you would enable asynchronous I/ O on your system.
这也是您在系统中启用异步I/O的方法。
At nine o 'clock on the dot, they have breakfast.
他们在9点钟准时吃早饭。
Figure 7 shows a POWER system with partitions and Virtual I/ O Server.
图7显示了一个包含分区和虚拟I/O服务器的POWER系统。