daddy-poppy's 藥學跟動物世界

tap （v）    輕敲   If you tap something, you hit it with a quick light blow or a series of quick light blows
Grace tapped on the bedroom door and went in

knock on the door    用力敲門

tap （v）   觸碰螢幕   to touch the screen of a phone, tablet computer, etc. in order to give an instruction for something to happen

tap （v）    敲節拍、打節奏    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
The song's so catchy it makes you bounce round the living room or tap your feet

catchy   琅琅上口的   If you describe a tune, name, or advertisement as catchy, you mean that it is attractive and easy to remember
The songs were both catchy and original

tap （v）    竊聽電話   If someone taps your telephone, they attach a special device to the line so that they can secretly listen to your conversations
We suspected the telephone line was tapped

tap（into） （v）    挖掘、開發    If you tap a resource or situation, you make use of it by getting from it something that you need or want
The Campbell Soup Company says it will try to tap into Japan's rice market

tap out   破產   
Tammy ran out of money a week before payday。She asked her coworkers if anyone can loan her some money so she can go over the weekend。Unfortunately everyone was also tapped out，and no one could help her

tap （n)    龍頭、閥門   A tap is a device that controls the flow of a liquid or gas from a pipe or container, for example on a sink College kids often serve beer from a keg with a tap at parties，because they can’t afford expensive beverages

water tap = faucet 　水龍頭

tap water = running water 　自來水

 （tap water）

bottled water 　　瓶裝水

beer on tap = tap beer（draft beer） 　桶裝啤酒、散裝啤酒　　 the beer is drawn from a large container, such as a keg, and poured directly into the glass. The opposite of "on tap" would be beer in a bottle

　（tap beer = beer on tap）

on tap    現成的 　 If something is on tap, you can have as much of it as you want whenever you want
Filtered water is always on tap，making it very convenient to use
He has money on tap

untapped （adj） 　未開發的、未利用的　 An untapped supply or source of something has not yet been used
Mongolia，although poor，has considerable untapped resources of oil and minerals

tap dancing  　踢踏舞　　 Tap dancing is a style of dancing in which the dancers wear special shoes with pieces of metal on the heels and toes. The shoes make loud sharp sounds as the dancers move their feet