They thought, for example, if you could do something with one element, if you looked at an element very close to it, it would be similar enough that you could maybe replace it with that.

他们认为，比如，用一种元素可以做的，用它邻近的元素，代替它的位置,也应该能做到。

麻省理工公开课 - 化学原理课程节选

It's looking at the problem that certain troubled institutions have that their assets can't be sold and it's just saying okay we'll replace them with assets that can be sold.

它正专注于那些,特定的问题机构所面临的问题,那些机构的资产不能被卖出，然而机构仍在说,好的，我们将用可转卖的资产代替它们。

耶鲁公开课 - 金融市场课程节选