tap-off

基本解释

At least investigate what's on tap - don't wave off this offer too quickly.
至少调查一下什么可以随时可用的——不要太快地浪费掉这个机会。
The town started a Tap Turn-off project to ask all the residents to save water.
该镇开展了一项关闭水龙头运动，要求全体居民节约用水。
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Two players battle it away in the tap-off round, which will determine who will get asked a bizzare question.
两个玩家的战斗载分接开关轮，这将决定谁就会提出一个古怪的问题。

Consumers can reduce the amount of water through direct action - by applying a water-saving showerhead, shutting off the tap during teeth brushing, by not disposing of medicines, paints or other pollutants down the sink etc.
UNESCO: MEDIA SERVICES
We're keen on the fbt, a phone designed for braille text messaging, and the Tap, which is shaped like a light switch and functions like one too -- when you tap it, the phone turns off so you can live once again in peace.
ENGADGET: LG's concept phone contest winners should please art house gadgetphiles