So, the size still for an s orbital is larger than for a d orbital, but what we say is that an s electron can actually penetrate closer to the nucleus.

轨道的尺寸比,ｐ轨道还是要大，但我们说的是ｓ轨道可以,穿透到更接近原子核的地方。

麻省理工公开课 - 化学原理课程节选

When you get a bagel, it used to be you'd get something this size, and now you get something that's really, really much bigger.

百吉饼,过去人们吃的是冰球大小的,而现在已经比过去大了非常多

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选