cascading menu

1. Choose change button image and select an alternative on the cascading menu.
   选择“更改按钮图像”，并从级联菜单中选择一个替换选项。
2. To edit the linked cascading style sheet of a document, on the format menu, click style sheet links, select the style sheet, and then click edit.
   若要编辑文档级联样式表的链接，请在“格式”菜单上，单击“样式表链接”，选择样式表，然后单击“编辑”。
3. This mechanism, called a cascading menu ( see Figure 22-4), presents some serious issues for ease of use.
   这种技术称为级联菜单（如图22-4所示），它给易用性造成了一些严重的问题。

noun

1. a secondary menu that appears while you are holding the cursor over an item on the primary menu

   Synonym:    hierarchical menusubmenu