When Milton instructs his muse, "Say first, for Heav'n hides nothing from thy view," there's something more here than the primary sense of the word, which is just "first in sequence."

弥尔顿写到缪斯的时候，“请先说，天界和地狱深渊在您的眼中，一切都了如指掌“,这句中“先“除了它本身的意思“最先“之外，还有其他的含义“

耶鲁公开课 - 弥尔顿课程节选

We learn nothing from examining what is going on down here in n equals one shell.

必须仔细检查不然我们学不到什么的,这里n=1的壳。

麻省理工公开课 - 固态化学导论课程节选

The ionization energy must then be nothing more than, that is the energy to go from the ground state here to n equals infinity, so that would be the energy at state infinity minus the energy of the ground state.

这个电离能一定不会大于，从基态到n为无限大时的能量,而是等于,无限远处的能量减去基态能量。

麻省理工公开课 - 固态化学导论课程节选