但我们看到，我们只有两个未配对的电子。

But what we see we have is that we only have two unpaired electrons here.

youdao

我们可以引入4个氢原子，每个贡献一个未配对的电子。

So we can bring in four hydrogen atoms, which will each contribute another unpaired electron.

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HTC用户也可以通过完全关闭蓝牙功能来减少他们遭受攻击的可能性，或者断开与那些尚未配对的设备的连接。

HTC users can alternatively limit their vulnerability by turning off Bluetooth entirely, or by disconnecting from any device that is not already paired with the handset.

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So, if we hybridize just these three orbitals, what we're going to end up with is our s p 2 hybrid orbitals.

我们会看到现在有3个未配对的电子，可以成键。

麻省理工公开课 - 化学原理课程节选

So, electron promotion does not happen in terms of nitrogen, because it would not increased our number of unpaired electrons.

这里对于氮原子不会有电子激发，因为这不会增加,未配对电子的数目。

麻省理工公开课 - 化学原理课程节选

And again, we have the pairing of the unpaired electrons, and we have two orbitals coming together.

同样，我们有未配对电子的配对，我们有两个轨道结合。

麻省理工公开课 - 化学原理课程节选