Then we turn to the island of Euboea, that long island that's right next to the east coast of Attica, Euboea.

让我们再看看埃维亚岛,是阿提卡正东岸的长形岛屿,埃维亚

耶鲁公开课 - 古希腊历史简介课程节选

And it turns out that when you constructively have two p orbitals interfere, and when I say constructively, I mean they're both either positive or they're both the negative lobes, that's when you got bonding.

当两个ｐ轨道,相长干涉时，我说的相干相长，意思就是说它们要么都是,正的叶瓣要么都是负的叶瓣，这时就能成键。

麻省理工公开课 - 化学原理课程节选