To determine if this is the result of thermal expansion, try briefly opening the cold water tap.

为了确定是否是热膨胀引起的，可以短暂开启冷水龙头进行测试。

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One man seemed slightly perplexed after the cold water tap in the bathroom appeared to turn itself on and off of its own accord.

有个人看上去有些困惑，因为他看到浴室里的冷水水龙头好像会自动开关。

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The cute frog humidifier operates with cold tap water.

可爱的青蛙加湿器的运作与冷自来水。

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Mr Gumpert told the jury one of the workers lived in a horsebox with 10 others and the only washing facilities were a cold water tap in the yard and a shared toilet.

BBC: Beds, Herts & Bucks

They allege the cells are kept at cold temperatures, don't have enough beds or bathrooms and aren't sometimes given cups to drink tap water.

WSJ: Immigrant groups sue federal border agencies