So let's fill it out in this way, 2p keeping in mind that we're going to fill sigma out the pi 2 p's before the sigma.

让我们这样填上去，记住我们先填π,轨道再填。

麻省理工公开课 - 化学原理课程节选

So, that's going to be important later when we get to bonding, but just take note of it now, we have two nodes, or we have two lobes, excuse me, each with a separate phase.

这等到我们之后讲到成键时是非常重要的，现在先要记住，我们有两个节点，不好意思，是两个叶瓣，每个都是不同的相位。

麻省理工公开课 - 化学原理课程节选

So for now, just take it on faith that you'll have main to say int before you say main.

现在，大家要记住,先写int再写。

哈佛公开课 - 计算机科学课程节选