以 Facebook 为例，该公司表示，在该链接被重用之前，数据可能会一直存在，通常是“在很短的时间之后”，不过很明显，这段时间的长度可能很不确定。

In the case of Facebook, the company says data may hang around until the URL in question is reused, which is usually "after a short period of time", though obviously that time can vary considerably.

youdao

不过，我们工作时间的长度也有极限。

But there is also a limit to how long we can work.

youdao

现在不只工作时间的长度决定生产的价值，还有随时投入的精力。

It's now how long you work that determines the value you produce, but rather the energy you bring to whatever hours you work.

youdao

Therefore, for simple branching programs, the length of time, the complexity the code, is what we would call constant.

因此，对于简单的分支程序，运行的时间长度，算法的复杂度，也就是我们说的常数。

麻省理工公开课 - 计算机科学及编程导论课程节选

We talked about the inevitability of death; we talked about the variability, that people have different lengths of time before they die.

我们讨论过了死亡的不可避免性;,我们讨论过了其可变性，不同的人在他们死之前有所的时间长度不同。

耶鲁公开课 - 死亡课程节选

And we said that was log rhythmic, took log n time where n is the size of the list.

当列表的长度为n的时候，整个算法耗时log，n的时间。

麻省理工公开课 - 计算机科学及编程导论课程节选