These names are placeholder names in court or in police investigations.

这些名字在法庭或警方调查中是占位名。

Another placeholder is whatsitsname (what's its name) , all this is one word, what's its name.

另一个占位符是 whatsitsname（它叫什么来着），所有这些都是一个词，它叫什么来说。

Then, using placeholder bricks, he maps out the general shape of the section he's going to work on.

然后用占位积木，他勾勒出他将要制作的那部分的大概形状。

But zero as a placeholder is not the same as mathematical nothing as in what's left of my candy.

但是零作为占位符和数学中的零是不一样的，数学中的零代表什么都没有，就像我刚刚剩下的糖果一样。

Words like thing, and stuff, are convenient placeholders.

像 thing 和 stuff 这样的词是方便的占位符。

Hardly worthy of higher rank than a  column leader or their placeholder.

几乎不值得比列长或其占位符更高的级别。

So I'm using %i as a placeholder.

所以我使用%I作为占位符。

Often, in the lab we use placeholders like 'dilute' and 'concentrated' when talking about solutions.

通常，在实验室中， 我们在谈论解决方案时会使用诸如“稀释” 和“浓缩” 之类的占位符。

And the placeholder South Korean leaders, who are led now by an acting president, are calling for unity in this moment.

韩国代总统呼吁民众在这一时刻保持团结。

I'm using %c as my placeholder.

我正在使用%c作为占位符。