Natural mineral water originates from underground spring. It is clear, pure and has no pollutant. It contains many trace elements.

天然矿泉水是来自地下深处的泉水，水质清纯无污染，含有人体必需的微量元素。

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The air, pumped into large underground formations, is like a spring that's been squeezed and when it's needed, it can deliver a large percentage of the energy that it received.

在大型地下场所中储存的空气，就像一个被压缩的弹簧，如有需要，能够将大部分转化进来的能量输送出去。

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The downstream export of underground river, Jiangjia Spring, is the vital water resource for nearby residents, the water quality has a direct effect on the local people's health.

地下河下游出口袁家沟（姜家泉）为附近居民生活供水的重要水源之一，其水质好坏直接关系到居民的健康状况。

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He saw that an underground spring flowed under the ice at that spot.

VOA: special.2010.05.01

East Riding of Yorkshire Council said that an underground spring might have caused damage to a nearby sewer.

BBC: Suspected sewer collapse causes closure of Beverley road

People do stare when, instead of slapping your card on the reader, you slam down a chunky bangle only to see the gates to the underground spring open.

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As luck would have it, a project called NOvA, which should start collecting data in the spring of 2013, will send neutrinos through the Earth's crust from Batavia to an underground detector 810km away in Minnesota.

ECONOMIST: The future of physics (1)