tapped

基本解释

So what does it mean to be French today? President Nicolas Sarkozy has tapped another French staple the love of debate to launch a three-month, national conversation on the subject.
(Sound) Yves Leterme and his government were sworn into office by King Albert of Belgium Wednesday afternoon, less than a week after his predecessor, Herman Van Rompuy, was tapped to be the European Union's first permanent president.

But with Canadian household debt climbing recently, many analysts expect consumers here may be tapped out.
FORBES: New Federal Rules for Debt Collectors
But U.S. production is falling because of environmental restrictions on exploration and tapped-out existing gas fields.
FORBES: Brownout

A tap is a device that controls the flow of a liquid or gas from a pipe or container, for example, on a sink or on a cask or barrel.
If you tap something, you hit it with a quick light blow or a series of quick light blows.
Tap is also a noun.
If you tap your fingers or feet, you make a regular pattern of sound by hitting a surface lightly and repeatedly with them, especially while you are listening to music.
If someone taps your telephone, they attach a special device to the line so that they can secretly listen to your conversations.
Tap is also a noun.
If drinks are on tap, they come from a tap rather than from a bottle.