And, finally, it requires two lines of boilerplate down at the bottom, so that this particular test can be run by itself from the command line.

最后，需要两行固定不变的代码，这样才能从命令行运行这个测试。

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Lines 49 to 52 define the menu and MenuItem for the add, find, and clear actions, which can be accessed from drop-down menus when the application is deployed and run.

第49到52行定义“添加”、“查找”和“清除”操作的Menu和MenuItem，当部署和运行应用程序时可以从下拉菜单使用它们。

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Run through: Ruled lines run across or down the sheet from one edge of the paper to the other without breaks.

通栏画线：画线时，线条从纸的一边画到另一边，或从纸头画到纸尾而不中断的情况。

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