Remember, we didn't hybridize the 2 p y orbital, so that's what we have left over to form these pi bonds.

记住，我们并没有杂化2py轨道，这是我们剩下的那个行成了π键。

麻省理工公开课 - 化学原理课程节选

s -- we don't have to hybridize it, it already has only one unpaired electron in a 1 s orbital.

s-我们不用杂化它，它已经有而且仅有一个未配对电子在s轨道里。

麻省理工公开课 - 化学原理课程节选

We got them from combining again, 1 s orbital and the 3 p orbitals. If we hybridize these, what we end up seeing are these four hybrid orbitals.

我们把1s轨道，和3p轨道结合而得到它们，如果我们杂化它们，我们最后会看到4个杂化轨道。

麻省理工公开课 - 化学原理课程节选

And again, you might be thinking well, why didn't we actually hybridize this 2 p y orbital.

它来自1s和2p轨道，所以它是sp2，同样。

麻省理工公开课 - 化学原理课程节选