最初它们是圆圆的金属片，中间有一个洞，这样一根绳子就可以把它们串在一起。

Originally they were round pieces of metal with a hole in the center, so that a piece of string could keep them together.

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如果我们把它们捆在一起，它们可能会支撑一条路。

If we tied up a bunch of them together, they might support a road.

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“把它们放在一起。”她说。

"Match them together under one roof," she says.

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I have shown that by taking Avogadro's number of individual ion pairs and putting them all together in a line, the system's energy became more negative.

我推导出了,从每一个离子对中抽出阿伏加德罗常数,再把它们放在一起在一列中，这个系统的能量就变得更负。

麻省理工公开课 - 固态化学导论课程节选

Run merge sort on those. By induction, if it does the right thing, I'm going to get back two lists, and I'm going to then merge Them together. Notice what I'm going to do.

在这些上面再运行归并排序，根据归纳，如果这样是正确的,我将重新得到两个列表,然后我会把它们合并在一起。

麻省理工公开课 - 计算机科学及编程导论课程节选

So any time that you're drawing these molecular orbital diagrams you want to keep in mind that the number of electrons that you have in atomic orbitals, you need to add those together and put that many electrons into your molecule.

任何时候当你们画分子轨道图时,你们要记住,原子轨道里的电子数，你要把它们加在一起,并放到分子轨道里去。

麻省理工公开课 - 化学原理课程节选