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，那么这个数据传输就是浪费的。

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.

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客户机可以运行许多次，随着网格中的工资数据不断增长，每一次都会显示更高的平均工资。

The client can be run a number of times, each time showing a greater average salary as the salary data in the grid is incremented.

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每一次，公司需要添加新的应用程序时，它就被迫要扩大其数据中心。将旧的淘汰或重编程序。

And every time a company needed to add a new application, it was forced to expand its data centers, replace or reprogram old systems, and hire it technicians to keep everything running.

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A cohort study means you take the same group of people and follow them every five years for that period of time.

定群研究意味着你只有一组研究对象,然后在研究期间每五年进行一次记录数据

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

The Framingham Study was perfect for that because you had these bi-annual assessments.

弗明汉研究数据对我们的研究很有帮助,除了每两年一次的评估数据

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Now I'm putting count in double quotes, not to make it a string, but to say, this is count generically. It could be counting one by one through the integers, it could also be taking a collection of data and going through them one by one. It could be doing counting in some other mechanism.

现在我把count用双引号标起来，不是说把它命名为一个字符串，而是说，这是一个通用的计数器,它可能是每一次减1的整数,也可能是拿一个集合的数据然后,一个一个的访问它们,也可能是以某种机制来计数。

麻省理工公开课 - 计算机科学及编程导论课程节选