For example, the code snippet just shown cancels the transition to the new page if the current user is not authorized to view pages with an index greater than 4.
例如，刚才的代码片段在当前用户未被授权查看索引大于4的页面时，取消了转换到新页面的操作。
If you run this code with a larger number for the Fibonacci sequence index (say, 12), you'll end up watching output scroll by for a long time.
如果对大的斐波纳契数列(比如说12)使用这段代码，将会看到长时间的滚动输出。
The next two queries cannot use an index because an element "phone408" needs to be returned for every author, even if it is an empty element for authors outside the 408 area code.
下面两个查询不能使用索引，因为必须为每个author返回元素“phone408”，即使是区号408之外的author的空元素。
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