tap

英音: ['tæp] 美音: ['tæp]

可数名词：
1. 轻打，水龙头，电话窃听
及物动词：
1. 轻打，轻敲，敲打出
2. 打节拍
3. 利用，开发，发掘（已有的资源、知识）
4.(在电话上)安装窃听器、搭线窃听
不及物动词：
1. 轻打，轻敲，敲打出

draw from or dip into to get something
furnish with a tap or spout, so as to be able to draw liquid from it
walk with a tapping sound
make light, repeated taps on a surface
tap a telephone or telegraph wire to get information
pierce in order to draw a liquid from
draw (liquor) from a tap
draw from; make good use of
cut a female screw thread with a tap
the sound made by a gentle blow
make a solicitation or entreaty for something; request urgently or persistently
a tool for cutting female (internal) screw threads
a small metal plate that attaches to the toe or heel of a shoe (as in tap dancing)
a light touch or stroke
a plug for a bunghole in a cask
dance and make rhythmic clicking sounds by means of metal plates nailed to the sole of the dance shoes
strike lightly
a gentle blow
a faucet for drawing water from a pipe or cask
the act of tapping a telephone or telegraph line to get information

这些动词均有“敲、击”之意。
knock指用拳头或其它器械猛敲或猛打；也指用手轻敲某物。
tap多指慢慢地连续地轻击或轻拍。
rap指用手指或木棒等快速地轻敲或急拍。
pat指用手轻拍以示同情、赞同或爱抚。

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