tap基本解释
vt,轻敲；轻打；装上嘴子,同近
He tapped the table nervously with his fingers..他紧张地用手指轻轻地敲打桌子。
轻敲；轻打；装上嘴子英释vvto hit your fingers lightly on something, for example to get someone’s attention
tap water,自来水；非蒸馏水.短语
