So, let's look at this in a more simple structure here where we have the two possible forms of benzene, and the reality is is that it's going to be some combination of the two.

让我们从一个更简单的结构,来看看这两种可能的苯环构型，实际情况,是这两个的组合。

麻省理工公开课 - 化学原理课程节选

I'll compute its value. Then I'll empty the backpack out, put another combination of stuff compute its value, try all possible ways of filling up the backpack, and then when I'm done, I'll know which was the best.

直至把它填满，然后计算价值,然后我把包里的东西都导出来,再换一堆东西计算它们的价值,尝试过所有填满包的方案后,我就知道哪一种方案是最好的了。

麻省理工公开课 - 计算机科学及编程导论课程节选