hydrogen怎么读

hydrogen读作英[?ha?dr?d?n] 美[?ha?dr?d?n] 。

hydrogen的意思是氢气

造句：

Hydrogen and oxygen combine to form water. ?

氢与氧化合成水

Two atoms of hydrogen combine with one atom of oxygen to form a molecule of water.

两个氢原子和一个氧原子结合组成一个水分子。 ?

1、But not everyone sees the hydrogen fuel cell bus as the hope of the future.

但并不是每个人都把氢燃料电池巴士看作为未来的希望。

2、Nearly all their mass is made up of hydrogen and helium, giving them compositions like that of the sun.

它们的几乎全部质量都由氢和氦贡献，这使得它们的组成成分与太阳类似。

3、As long as the atmosphere has molecules of hydrogen and molecules of oxygen, why should we ever run out of water?

既然大气中存在着大量的氧分子和氢分子，那为什么还会出现水资源短缺的问题？