To appreciate has two meanings as we talked about: one is to say "thank you" for something and two is to grow.

欣赏有两个意思：,一是懂得感谢，二是传递。

哈佛公开课 - 幸福课课程节选

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

In plain English, this says that there are two electrons in the 1s orbital.

通俗地说,就是1s轨道上有两个电子的意思。

麻省理工公开课 - 固态化学导论课程节选