Hydrogen combines with oxygen to form water.

氢与氧化合成水。

《牛津词典》

Hydrogen and oxygen combine to form water.

氢与氧化合成水。

《牛津词典》

A molecule of water consists of two atoms of hydrogen and one atom of oxygen.

水分子由两个氢原子和一个氧原子构成。

《牛津词典》

It contains forms of hydrogen and oxygen that can mark, or label, these elements within body water.

VOA: special.2011.07.27

And, even Cavendish, one of the things that he observed was that hydrogen could be combusted to produce water vapor.

甚至卡文迪许都观察到了,氢气燃烧,会产生水蒸气。

麻省理工公开课 - 固态化学导论课程节选

If we take hydrogen peroxide in the liquid state, it can break down to form water and oxygen.

如果我们有一些液态的过氧化氢，它会分解成水和氧气。

麻省理工公开课 - 热力学与动力学课程节选

The carbon combines with the hydrogen in water to make carbon monoxide and hydrogen gas--the old "town gas"--but then the catalyst prompts a rejiggering of the atoms into methane (one carbon atom attached to four hydrogen atoms).

FORBES: Entrepreneurs

The ultimate goal is to produce an efficient way of extracting hydrogen from water.

BBC: Apollo's fuel-cell power legacy

The robot is powered by heat-producing chemical reactions between the oxygen and hydrogen in water and the platinum on its surface.

BBC: Robotic jellyfish fuelled by hydrogen invented