为了提供最大的灵活性，应该能方便地显示或隐藏更新面板，并且不需要了解更新面板的内部原理。

To provide maximum flexibility, the update panel should be easily displayed or hidden without any knowledge of the internals of the update panel.

youdao

为了提供最大的灵活性，应该能方便地显示或隐藏更新面板，并且不需要了解更新面板的内部原理。

To provide maximum flexibility, the update panel should be easily displayed or hidden without any knowledge of the internals of the update panel.

youdao