That makes sense because we're losing energy, we're going to a level lower level, so we can give off that extra in the form of light. And we can actually write the equation for what we would expect the energy for the light to be.

这很合理，因为我们在损失能量,我们要到一个更低的能级去,我们要以光的形式给出额外的能量,我们可以写下光能量的方程。

麻省理工公开课 - 化学原理课程节选

That was to protect depositors in the case of bank failure and it was a very important innovation because, at that time, there were huge runs on banks.

以保护储户在银行破产中免受损失,该机构的成立是个创举,因为那段时期,银行遭到挤兑

耶鲁公开课 - 金融市场课程节选

You would buy life insurance on both the husband and the wife -you might do different amounts; it's done by families with young children to protect them against the economic cost of the death of one of their parents.

夫妻双方都应该购买寿险,但两份保险的金额可以有所不同,这适用于有小孩子的家庭以弥补,因父亲或母亲去世而带来的经济损失

耶鲁公开课 - 金融市场课程节选