So several factors can cause slowdowns: the CPU is busy, the application is doing too much I/O, it is waiting for I/O to complete, or some combination.

所以有多个因素可能导致速度降低：CPU 繁忙、应用程序做的 I/O 过多、 等待 I/O 完成或上述情况的某种组合。

youdao

Virtual I/O Server hosts logical I/O devices to the partitions, such as virtual SCSI disks and virtual Ethernet.

虚拟 I/O 服务器将逻辑 I/O 设备分配给分区，如虚拟 SCSI 磁盘和虚拟以太网。

youdao

Many customers have high I/O rates and are "I/O bound" because of mail file sizes.

许多客户由于邮件过大而产生很高的 I/O 率和 “I/O 绑定”。

youdao

As she felt the doll with one hand I slowly formed the letters, d-o-l-l with my fingers in her other hand.

VOA: special.2009.11.08

I once counted the number of times he used the word the letter--O--in that poem, and I quit counting.

我曾经数过他到底在诗里用了多少个"啊",最后我放弃了

耶鲁公开课 - 美国内战与重建课程节选

GCC -o So, on the one hand, I've run this command here, GCC dash O and this projector I'm highlighting things all day long on the screen here and you're not seeing any of it unfortunately it seems on this projector.

我在这运行了一条命令,这台投影仪我一天到晚的开着,一再强调屏幕上的东西，不幸地，你们却,在投影仪上没有看到它。

哈佛公开课 - 计算机科学课程节选

Gofynnodd arweinydd Democratiaid Rhyddfrydol Cymru Kirsty Williams AC pam bod cyn lleied o gynnydd wedi'i wneud i annog y sector nid-er-elw i fynd i mewn i'r farchnad, a gofynnodd pa dargedau - os o gwbl - oedd wedi'u gosod ar gyfer y dyfodol.

BBC: Pwyllgor Iechyd a Gofal Cymdeithasol

Liberals think they smell more than a little H-Y-P-O-C-R-I-S-Y.

FORBES: In Defense of Arizona's Medicaid Rationing

Can you spell h-y-p-o-c-r-i-t-e?

FORBES: Pork Holding Up Senate Sandy Relief Bill Funneled Into The Troughs Of GOP Deficit Hawks? You Betcha.