To act upon one's advice

We have a right, also, in various ways, to act upon our unfavourable opinion of any one, not to the oppression of his individuality, but in the exercise of ours.

我们还有权利以各种不同的办法让我们对某人观感不佳的意见发生作用，不致压抑他的个性，却能运用我们的个性。

Enters data selection mode. Allows you to select one or more items in a view and act upon the data using a contextual action bar. Avoid using long press for showing contextual menus.

进入数据选择模式。允许你通过使用一个上下文的操作栏选择一种或者更多项目在你的视图里。避免为了显示上下文的菜单而长时间长按。

It's one thing to know what you need to do, and another to act upon it.

知道要做什么是一回事，开始据此行动则是另外一回事。