同样，您会想到首先填充一个比较键列表，然后进行排序，而不是进行内联排序。

Again, you're driven to the idea of first filling a list of comparison keys and then sorting, rather than sorting inline.

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您可以指定排序键（用于比较的行中的一部分），也可不指定，后一种情况下 sort 就比较所有行。

You can specify sort keys (portions of lines used for comparisons) or not, in which case sort just compares whole lines.

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比较test 14和test 16、test 15和test 17，我们可以看到，在insert之后创建外键可以将总耗时减少大约40%。

Comparing tests 14 and 16, and 15 and 17, we see that creating the foreign key (s) after inserts can reduce the total elapsed time by roughly 40%.

youdao

So what we can actually directly compare is the dissociation energy or the bond strength of nitrogen versus hydrogen.

因此实际上我们可以直接进行比较,对氮分子与氢分子的离解能,或键的强度。

麻省理工公开课 - 化学原理课程节选

So, what this lets us do now is directly compare, for example, the strength of a bond in terms of a hydrogen atom and hydrogen molecule, compared to any kind of molecule that we want to graph on top of it.

因此，这让我们现在可以做到直接进行比较，比如，将一个氢原子，和一个氢分子的键的强度，与任何其它类型的分子进行比较,我们只需要把它的曲线也画在这幅图上。

麻省理工公开课 - 化学原理课程节选