Water is a basic necessity of life.

水是一种基本生活必需品。

《柯林斯英汉双解大词典》

Water is important because all life needs water.

水很重要，因为所有的生命都需要水。

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Since most planetary scientists believe that water is essential to life, the presence of jarosite means that one prerequisite for life was once present on Mars.

由于大多数行星科学家认为水是生命的基本要素，因此黄钾铁矾的存在意味着火星上曾经存在出现生命的先决条件之一。

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The wreck of the Lady Elgin remains the worst loss of life on open water in the Great Lakes.

VOA: special.2009.11.11

And I was just in the water which is the place I feel most comfortable as a swimmer all my life.

那一刻我在水中,感到这是我一生中最舒适的游泳环境。

普林斯顿公开课 - 人性课程节选

Life is thought to need both water and the right chemicals to guarantee survival.

VOA: special.2010.05.25

The fountain depicts a life-size female figure pouring water from an urn into a bowl with the inscriptions "take the water of life freely" and "water is best".

BBC: Rebecca Fountain in Bath

The primary goal of the 'Water for Life' Decade is to promote efforts to fulfil international commitments made on water and water-related issues by 2015.

UNESCO: OFFICE IN TASHKENT

They enable Mars Rover Curiosity to search for water and life and tell people on Earth what they find.

FORBES: Why Sensors Are a Force of Context