名词
中文翻译：后退的水龙头
同义词：
['retarded tap', 'slow-moving tap']
例句：
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1.The water pressure in the back of the house is backed-off compared to the front.
房子后面水压比前面小。
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2.The old pipes in the basement are backed-off and need to be replaced.
地下室的旧管道需要更换。
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3. The new faucet has a back-off feature that makes it easier to turn off without having to unscrew the handle.
新水龙头有一个可调节的关闭功能，不需要拧开把手就可以关闭。