Military commanders said Monday the rebels' days are numbered.

VOA: standard.2009.04.06

So line 1, I've numbered the lines just for the sake of discussion.

因此，第一行，这些行,我已经编号以方便讨论。

哈佛公开课 - 计算机科学课程节选

these pentose molecules, whether it's ribose or deoxyribose, the carbons are numbered the same 1', 2', 3', 4', 5', those are the five carbons that make up the pentose.

这些戊糖分子,不管是核糖还是脱氧核糖,碳都是从1'标注到5',也就是构成戊糖的5个碳原子

耶鲁公开课 - 生物医学工程探索课程节选

And in that--I'm so careful, perhaps the blocks are numbered, I'm so careful that every block is in the exactly same position as in the case where my son built it.

我搭的非常仔细，也许这些积木都编了号，但我搭的很仔细，所以每块积木,都在我儿子之前搭那座塔时,摆在的位置上。

耶鲁公开课 - 死亡课程节选