In the art world, that's the paper trail that proves a painting or sculpture is not forged or stolen.

VOA: standard.2010.07.26

So I'm not going to worry whether this item is a vase or a watch or painting I'm just going to say it's the n'th element.

所以我不用担心这个物品,是花瓶还是手表或者油画,我只要说这是第n个元素就好。

麻省理工公开课 - 计算机科学及编程导论课程节选

So I'm not going to worry whether this item is a vase or a watch or painting I'm just going to say it's the n'th element.

所以我不用担心这个物品,是花瓶还是手表或者油画,我只要说这是第n个元素就好。

麻省理工公开课 - 计算机科学及编程导论课程节选