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关闭子菜单并返回上一级菜单或子菜单。
Close ea submenu and return to the previous menu or submenu.
youdao
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这里菜单只有一级，层次关系扁平化了。
The hierarchy of menus has been flattened down until it is only one level deep .
youdao
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这里菜单只有一级，层次关系扁平化了。
The hierarchy of menus has been flattened down until it is only one level deep .
youdao