它也可以按照组成部分被分解——氧和氢。

It could also be broken down into its component parts—oxygen and hydrogen.

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第三种是某些基本的化学物质，如碳、氧和氮。

A third is certain basic chemicals such as carbon, oxygen and nitrogen.

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大肠菌群是指需氧和兼性厌氧的革兰氏阴性无芽孢杆菌。

The coliform group referred to the aerobic or facultative anaerobic gram-negative budless bacillus.

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So, if we compare the sulfur to the oxygen, the oxygen it turns out is more electronegative and that is what holds the negative charge in this molecule.

因此，如果我们来比一下硫和氧，氧应该有更高的电负性,而在这个分子中它确实有负的电荷。

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So, if we look on the periodic table, comparing, for example, s to o, if we have s it's below o, what happens to ionization energy as we go down a table?

那么，如果我们看周期表上，比较，比如，硫和氧，硫在氧下面，当我们沿着表向下看的时候,电离能是怎么变化的？

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Here is oxygen and fluorine.

这就是氧和氟。

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