I've got two states here, three states here, two here, I need four, and if I can come up with these bonds, four, by the Hund rule I'd fill them like this.

我们已经有2个状态在这里，3个在这里，2个在这里，我需要4个，如果我能想到这些键，四个，通过洪特规则，我们就能像这样排布。

麻省理工公开课 - 固态化学导论课程节选

1 So, it's two times 3.12 plus four times 1.31, 6 all divided by six.

就是2*3。12+4*1。,最后再除以。

麻省理工公开课 - 固态化学导论课程节选

It was about four feet by two-and-a-half feet.

长约四英尺宽约两点五英尺。

耶鲁公开课 - 旧约导论课程节选

We were talking about the subdivision of that pulse, the organizing of that pulse into meters, and that we had this capacity to indicate what the meter was by these numbers: two-four, and three-four for duple and triple meter.

我们还讲到律动的进一步划分,将律动组织成拍子,与此同时我们能够用一些数字,来表示不同的拍子,比如,用二四拍和三四拍表示二拍子和三拍子

耶鲁公开课 - 聆听音乐课程节选