Finding the last occurrence of an element, such as the last list item in a bulleted list, or the last option in a selection list, is also a common operation.
找到元素的最后一次出现(比如项目列表中的最后一个列表项，或者选择列表中的最后一个选项)也是一个常见操作。
This type of Ajax pattern is particularly handy when you have a line item or detail type report in which finding the detail of each record is costly, and therefore, doing so on demand is ideal.
如果有一个行项或细节类型的报告，这种 Ajax 模式非常方便，因为请求每个记录的细节可能非常耗时，最好在需要的时候再请求。
This is due to the fact that placing an ad in the newspaper increases the chances of finding a local buyer and successfully selling your item .
这是因为在报纸上刊登广告的机会，增加了当地寻找买主，成功推销你的项目。
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