The number of calories you guys consume as a part of your diet, if you're the average person, is much higher than used to be the case and that has very interesting biological implications that we'll discuss.

从作为饮食一部分的饮料中摄取的热量,就普通人的情况而言,和过去相比要高得多,这包含了一层有趣的生物学含义

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

s But it just turns out that the 4 s is so low in energy that it actually surpasses the 3 d, because we know the 3 d is going to be pretty high in terms of the three shell, and the 4 s is going to be the lowest interms of the 4 shell, and it turns out that we need to fill up the 4 s 4s before we fill in the 3 d.

但是结果是,能量较低,4s是第四层最低的，因为我们知道3d在第三层,是非常高的，4s是第四层,最低的，结果是我们在填充3d之前,需要先填充。

麻省理工公开课 - 化学原理课程节选