We can see that it looks like a button, but how do we know what it will accomplish when we press it?

我们看到一个按钮样的东西，但如何才能知道当它被按下时能完成哪些任务？

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The economy is massive and so, as a consequence, no matter what levers and buttons we press, sometimes it doesn't move as quickly as is needed to provide relief to so many of our constituents.

WHITEHOUSE: President Obama Takes Questions from Senate Democrats

We were unaware of this routine request for information until we learned of it in the press today.

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"We need to continue to press on it, " he said.

CNN: U.S. 'encouraged' by Pakistan terror fight