updates

基本解释

If there is only one repository, it receives both updates.
如果仅有一个储存库，它需要接收两个更新。
This uses only one lock and keeps others from interfering with the updates, but it does reduce concurrency of the data to other users.
这只使用了一把锁从而防止其它事务妨碍这些更新，但是对于其他用户它的确减少了数据并发性。
On the top of that, each request carries some data over the network; if the request does not find any updates on the server, this data transfer is a waste.
除此之外，每一次请求都要在网络上传输一些数据，如果请求未在服务器上发现任何更新，那么这样的数据传输就是浪费资源。

Unlike blogs, Twitter users do not have to log onto the Web site to post updates.
What I mean by that is, pick a simple set of values, and let's walk through it to see what happens. And this is useful because it's going to allow me to A make sure that I've got something that's going to terminate, it's going to let me make sure that in fact I'm doing the right kinds of updates.
原因你们知道的，好，模拟代码,我的意思就是,选出一系列的值来,然后模拟下代码的执行来看看结果,这很有用因为这让我确保我的程序在某个地方,可以终止，还会让我确保实际上我。
麻省理工公开课 - 计算机科学及编程导论课程节选
And the challenge that we gave to ourselves is can we do that packaging in such a way that lays a ground work for community learning coming out of people who got involved in looking at the experiment of knowledge updates.
我们自己面临的挑战是,究竟能否,借用技术打包,为知识更新实验的,观看者的群体学习打下,坚实的基础。
麻省理工公开课 - 媒体、教育、市场课程节选

Watson has also received some major "vision" updates, with improved image and facial recognition.
ENGADGET: ICYMI: Best VR Ride, Screen Buttons That Re-Form and More

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An update is a news item containing the latest information about a particular situation.
If you update someone on a situation, you tell them the latest developments in that situation.