那是在过去，还没有到开关一响就有电的时代。

That was in the days before electricity was available at the flick of a switch.

《牛津词典》

我们搬进了一间有电但是没有自来水的小木屋。

We moved into a cabin with electricity but no running water.

《柯林斯英汉双解大词典》

萨拉也交一份煤气、电和电话的费用。

Sara also pays a share of the gas, electricity and phone bills.

《柯林斯英汉双解大词典》

He introduced the concept of electronegativity which was a measure, therefore, it is quantitative, of the atom's ability to attract electrons within a covalent bond and developed a scale of electronegativity.

他引入了电负性这一概念,一个反映着原子在成共价键时吸引电子的能力的数据标度，因此这是数量上的，在共价电子中,电子原子能吸引电子,并发展为一定规模的电负性。

麻省理工公开课 - 固态化学导论课程节选

Here's where it comes. " The result of the discussion of these questions seems to be a general acknowledgment of the inadequacy of classical electrodynamics in describing the behavior of systems of atomic size."

这就是他来的地方“,这些问题讨论的结果,似乎变成了一种普通的知识,经典电动力学,不能描述原子尺度的系统行为“

麻省理工公开课 - 固态化学导论课程节选

So, when we're talking about the idea of electronegativity, essentially what we're talking about is the ability for an atom to attract electron density from another atom.

那么，当我们在讨论电负性这一概念的时候，本质上我们讨论的是一个原子的吸引能力,用来吸引另一个原子的电子密度的。

麻省理工公开课 - 化学原理课程节选