key on

基本解释

The snippet below places the key on the top left corner, and sets a box around it.
下面的代码片段将关键字放在了左上角，并在它周围设置了一个框。
You have a join logical file, but only want the index for the key on SSD, not the secondary indexes.
您有一个连接逻辑文件，但是只希望在 SSD 中保存键的索引，而不是二级索引。
The only way to guarantee that the public key signature is from the owner is for the owner to hand you the key on a disk, in person.
保证公共密钥签名来自所有者的惟一方法是，密钥的所有者亲自把磁盘上的密钥交给您。

In fact,the people who live on Islamorada Key claim their island is the "Sports Fishing Capital of the World."
Imagine I have a little lamp, a little goose- one of those little gooseneck lamps, I'd put it on the table here, I'd put the height about a f-- about a foot off the table. And if I was really good, - I could hit, or time it so that when I hurt- yeah, try again. When I turn this on switch on in the lamp, at exactly the same time, I'm going to hit a key on my computer and start it running.
想象下我有一个那种小雁颈台灯-,我把它放在桌子上，大概离桌子，有一英尺那么高吧,这样挺好的，我可以打开-,或者关闭这灯,并在这同时，我可以让我电脑,开始运行。
麻省理工公开课 - 计算机科学及编程导论课程节选
What was the key step that I said I needed to do on Friday but failed very publicly to do so?
至关重要的一步，我将在本周五跟大家细细道来,如果我很嚣张地失败了怎么办？
哈佛公开课 - 计算机科学课程节选

The team also presented, discussed and distributed materials on UNESCO's key on-going activities in the field of, e.g.
UNESCO: NATURAL SCIENCES