英语词汇optional menu怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

1
It is a top-level window with a border, title, and optional menu bar. Listing 3 shows the declaration of the calculator's frame.
它是一个顶级窗口，具有边框、标题和可选菜单栏。
2
The Format menu is one of the weakest of the optional menus because it deals almost exclusively with properties of visual objects and not functions.
如果某个应用主要是处理某一种文档或者对象，那么可以考虑把这种文档或者对象作为菜单的名字，这样可能更有意义。
3
They have a title, optional image, an optional title drop-down menu, and some other useful features (see Listing 2).
它们拥有标题、可选图像、可选标题下拉菜单和其他一些有用的特性(见清单2)。

单词	optional menu
释义	optional menu 简明释义任选菜单，选用项目单双语例句 1 It is a top-level window with a border, title, and optional menu bar. Listing 3 shows the declaration of the calculator's frame. 它是一个顶级窗口，具有边框、标题和可选菜单栏。 2 The Format menu is one of the weakest of the optional menus because it deals almost exclusively with properties of visual objects and not functions. 如果某个应用主要是处理某一种文档或者对象，那么可以考虑把这种文档或者对象作为菜单的名字，这样可能更有意义。 3 They have a title, optional image, an optional title drop-down menu, and some other useful features (see Listing 2). 它们拥有标题、可选图像、可选标题下拉菜单和其他一些有用的特性(见清单2)。
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