双语例句原声例句
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有机化合物的分子里含碳。
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含硫化合物的名称通常有前缀“thio”。
Sulphur-containing compounds are often prefixed by the term "thio."
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碳的化合价是4价。
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It's one of the only compounds, there's only I think three, where the density actually goes down when it freezes.
它是我见过的，唯一一个，在降温时密度下降的化合物。
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And, at the other extreme, we have elements with very high value, elements with high average valence electron energy.
另外，在另一端，我们有原子序数较大的元素，这些元素有着较高的平均化合价和电子能。
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But this is a compound, right, it has some non-zero heat of formation from the elements. So is water, right?
但这是种化合物，对吧？,它具有非零的生成热,水也是一样，对吧？
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