提供公共操作，例如刷新集合列表、清除搜索结果和处理查询。

Providing common actions such as refreshing the collections list, clearing the search results, and processing queries.

youdao

如果将在各种测试用例中执行公共操作，则在测试中包括setUp方法是一种很好的想法。

It is generally a good idea to include a setUp method in your tests if common operations are performed across different test cases.

youdao

我们同时还包含进了集合包，对一系列诸如和，最小，最大，历史图以及计数等等的公共操作提供了内置的支持。

We've also included the Aggregate Package with built-in support for a number of common operations such as Sum, Min, Max, Histogram, and Count.

youdao