Hydrogen combines with oxygen to form water.
氢与氧化合成水。
Hydrogen and oxygen combine to form water.
氢与氧化合成水。
Water contains hydrogen and oxygen.
水含有氢和氧。
Water is a compound containing the elements hydrogen and oxygen.
水是含有氢元素和氧元素的化合物。
Water is a compound containing the elements of hydrogen and oxygen.
水是含有氢元素和氧元素的化合物。
Water is composed of hydrogen and oxygen.
水由氢与氧化合而成。
Oxygen unites with hydrogen to form water.
氧与氢结合而成水。
Water may be resolved into hydrogen and oxygen.
水可以分解为氢和氧。
Water will continue to be what it is today: second in importance to oxygen.
水将继续保持它今天的地位——在重要性方面仅次于氧。
Water is a compound because it can be split into its components, hydrogen and oxygen.
水是化合物它可被分解成氢和氧这两种成分。
So let's think about water here as our simplest example with oxygen.
让我们讨论，对于氧来说最简单的例子-水。
At the bottom was what we needed to survive - oxygen, food and water.
最底层是你生存所需的：氧气、食物和水。
Rising ocean temperatures arealso a threat: Warm water holds less oxygen than cold water.
海水温度的升高同样是个威胁：温水的含氧量比冷水低。
You burn methane, and it combines with oxygen to form water, to form CO2.
燃烧酒精，酒精分子和氧气结合形成水和二氧化碳。
Status: Last year, scientists found a plentiful raw material that can free oxygen from water.
现状：去年，科学家发现大量能把氧气从水中释放出来的原材料。
The water doesn't have enough oxygen in it to support fish.
这两处地区水的含氧量不足以维持鱼类的生存。
The nutrients feed algal blooms, which suck up the oxygen in the water.
这些营养养育了大量藻类，这些藻类吸收水中的氧气。
These plants will produce the food, water and oxygen that we need.
这些植物将会产出我们所需要的食物、水和氧气。
As there is no oxygen or water on the moon, living there would be difficult.
由于月球上没有水和氧气，所以在那里难以生存。（加了“所以”二字）
Oxygen unites with hydrogen to form water.
氧和氢结合就构成了水。
Oxygen unites with hydrogen to form water.
氧气和氢气结合就成为水。
Our bodies break water down into its parts: hydrogen and oxygen.
我们的身体把水分解成它的成份：氢和氧。
Analyse water into oxygen and hydrogen.
把水分解成氧和氢。
Water, you know, is made up of hydrogen and oxygen.
你知道，水是由氢和氧构成的。
水中含氧。
Oxygen and hydrogen make water.
氧和氢构成水。
Water is a compound of hydrogen and oxygen.
水是氢和氧的化合物。
Water is a compound of hydrogen and oxygen.
水是氢和氧的化合物。
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