You'll need some information -- such as the different parts of the frame, the links, and the navigation bars -- for all views when a user is logged in.
当用户登录时，将需要所有视图的某些信息（如框架的不同部分、链接和导航栏）。
In the 21st century, many people will first think about search online when they need some information.
在已跨入21世纪的今天，许多人在需要查询信息时，首先想到的就是上网。
A friend an I are planning a trip to visit Northern Europe, and I need some information on airline flights.
我和一个朋友正计划一趟游览北欧之旅，我需要一些有关航空班机的资料。
Sometimes you don't want to initialize a large collection, but still need some information about it (like its size) or a subset of the data.
有时候，你并不需完全实例化整个大的集合，仅需要了解它的部分信息（例如其大小）、或者集合的部分内容。
Sometimes you don't want to initialize a large collection, but still need some information about it (like its size) or a subset of the data.
有时候，你并不需完全实例化整个大的集合，仅需要了解它的部分信息（例如其大小）、或者集合的部分内容。
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