"If coal and gas and oil had to pay the price for the damage that they did,we would use a whole lot less of them.

VOA: standard.2010.04.21

That doesn't solve the problem we had before though Then I'm going to append it, and keep the last change for future use.

这样没有解决我们之前的问题,所以我要给它加上一个值，让上一次的变化能够用到未来的例子中。

麻省理工公开课 - 计算机科学及编程导论课程节选

So here I'm going to use the example we had in class last time.

所以在这里,我将要使用上次在课上举过的例子。

麻省理工公开课 - 计算机科学及编程导论课程节选