1. on tap : 可随时使用;
及物动词
名词
1. 龙头;阀门;旋塞
A tap is a device that controls the flow of a liquid or gas from a pipe or container, for example on a sink.
1. a light touch or stroke
2. the act of tapping a telephone or telegraph line to get information
Synonym: wiretap
3. a plug for a bunghole in a cask
Synonym: spigot
4. a tool for cutting female (internal) screw threads
5. a small metal plate that attaches to the toe or heel of a shoe (as in tap dancing)
6. a faucet for drawing water from a pipe or cask
Synonym: water faucetwater taphydrant
7. the sound made by a gentle blow
8. a gentle blow