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 have all appointment with him at2 o 'clock.
我和他在两点钟有个约会。
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。
This improves performance because it allows I/ O and application processing to run at the same time.
这种方式能够提高性能是因为它允许I/O和应用程序处理同时运行。
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。
For storage and I/ O, Linux can take advantage of a variety of real and virtual devices.
对于存储器和I/O，Linux可以利用多种真实设备和虚拟设备。
NIO's nonblocking I/ O mechanism is built around selectors and channels.
NIO的非阻塞I/O机制是围绕选择器和通道构建的。
O God!; Good Heavens!
天乎！
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。
He signed up as a steward with P& O Lines
他签约了P&O航运公司，成为了一名乘务员。
We will discuss I/ O more later.
我们将在后面对I/O进行进一步讨论。