子菜单

例句：

1. 1. In the main menu, click on "File" to open a new window with all your options.
   在主菜单中，点击“文件”以打开一个新窗口，其中包含所有选项。
2. 2. The user can choose from various submenus to find what they need.
   用户可以选择不同的子菜单来找到他们需要的东西。
3. 3. The submenu includes options for setting up email accounts and creating passwords.
   子菜单包括设置电子邮件帐户和创建密码的选项。