1.变窄
2.缩减
1.to reduce the number of possibilities or choices
1.To narrow down your search, the concept of a command group (in the next section) will be beneficial.
为了缩小搜索范围，命令组（接下来的部分）的概念将会非常有用。
2.This identification enables the system administrator to narrow down the root cause of the memory leak to a few component applications.
这一标识使系统管理员能够将内存泄漏的根源缩小到有限几个组件应用程序中。
3.Of course, you still select the brand if you know it to narrow down the product list.
当然，如果您知道产品品牌，则仍可以选择该品牌来缩小产品列表范围。
4.The user communities can be critical to helping you narrow down requirements to a very useful set of features and content.
为了将需求压缩成一组非常有用的特性和内容，目标群体是关键。
5.You can enable and disable this trace dynamically, which should help when trying to narrow down a problem.
可以动态地启用和禁用这种跟踪，在缩小问题范围的时候这样做会有所帮助。
6.Try to think of as many things as possible! You can always narrow down and scrap things afterwards, it's best to have more to choose from.
尽可能把所有你能想到的都想出来！那样就便于你以后缩小思考范围以及抓住重点。最好一开始就是多项选择。
7.In such a situation, the first step is to narrow down the root cause of the memory leak to one or a few components.
在这种情况下，第一个步骤是将内存泄漏的根源限制到一个或几个组件。
8.Finally, Exhibit offers facets, a set of tools to help users search and narrow down the data to find what they need.
最后，Exhibit提供了facet，这是一组工具，可用来帮助用户搜索和缩小搜索范围以便找到他们所需的数据。
9.We cannot assume that everybody will watch the game, we have to narrow down the major characteristics of our target audience.
我们不能设想每个人都观看比赛，我们必须缩小目标受众的主要特点。
10.It's too early yet to decide upon your specific grad school major. However, comprehensive research may help you to narrow down your choices.
决定读研的专业还太早了，然而广泛深入的研究还是可以帮助你缩小选择范围：