on tap
idiomPart oftap
on tap — idiom
1. 1) served directly from a barrel through a tap (of beer or cider); 2) available
1.慣用語
釋義
1) served directly from a barrel through a tap (of beer or cider); 2) available for immediate use whenever needed (figurative, of information, services, expertise)
例句
This pub keeps three different stouts on tap all year round.
A good personal assistant keeps all your appointments and contacts on tap.