tap off

基本解释

You must always turn the tap off.
你应该把水龙头关掉。
How much water can you save by turning the tap off when you brush your teeth?
当你刷牙的时候，如果关掉水龙头，能节省多少水呢？
Ten years ago, when most housing was public, turning the investment tap off and then on again was much easier.
而在10年前，当大多数房屋是公有的时候，关闭投资的阀门、然后再把它打开，要容易得多。
blog.sina.com.cn

"We must intensify our prevention efforts if we are to turn off the tap of new HIV and TB infections.

China provides the vast majority of North Korea's fuel oil, and analysts believe China could turn that tap off too if North Korea continues to ignore China's advice.
NPR: Rice Confident China Is Serious About N. Korea
Can you discuss sort of the challenge of trying to turn the tap off in a gradual way so as not to kick the legs out from the recovery?
WHITEHOUSE: Detailing the FY2011 Budget
Someone was always trying to turn his tap off.
NEWYORKER: Creation Myth