在构造菜单时，可能出现与清单1类似的代码。
When constructing a menu, code similar to Listing 1 might appear.
在 Motorcycle类的原始版本中，使用Source菜单生成几个构造函数，如清单6 中所示。
With the original version of the Motorcycle class, use the Source menu to generate a few constructors, like those shown in Listing 6.
随着这些新构造的出现，工具栏真正使自己成为一个主要的控制工具。不同于下拉菜单，而且在许多情况下优于下拉菜单。
With the advent of these new constructions, the toolbar truly came into its own as a primary control device, separate from-and in many cases superior to-menus.
随着这些新构造的出现，工具栏真正使自己成为一个主要的控制工具。不同于下拉菜单，而且在许多情况下优于下拉菜单。
With the advent of these new constructions, the toolbar truly came into its own as a primary control device, separate from-and in many cases superior to-menus.
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