And syntax refers to those rules and principles that allow us to combine words into phrases and phrases into sentences.

语法是指使我们将词组合成短语,以及将短语组合成句子的规则和原则

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So, we see is when we use the octet rule to look at fluorine molecule, we're combining two fluorine atoms, and what we end up with is an f f molecule where they're sharing two electrons, so making that covalent bond.

那么，我们看到把八隅体规则用到氟分子上,就是把两个氟原子组合起来，最终得到的氟分子中两个原子,共用一对电子，这就构成了共价键。

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