How do these two pieces join?

这两件东西怎样接合呢？

《牛津词典》

Two pieces of luggage have gone missing.

有两件行李丢了。

《牛津词典》

It sounded like two pieces of wood rubbing together.

听起来就像是两块木头在一起摩擦。

《牛津词典》

He said the idea came to him when he observed that the coasts of South America and Africa could fit together like two pieces of a puzzle.

VOA: special.2010.01.12

And in particular, I can then ask the following question, which is, what's different between those two pieces of code?

是有个明显的模式的,我特别要问如下的问题，这两块代码的,不同之处在哪儿？

麻省理工公开课 - 计算机科学及编程导论课程节选

If I were to hold up two pieces of paper, there's a sense in which they are participating in "Twohood."

如果我拿起两张纸,便有这样一层含义,即,这两张纸分有了 二性

耶鲁公开课 - 死亡课程节选

Taken early by Serb forces, it was the corridor that linked two pieces of Serb-held territory.

ECONOMIST: Brcko

Good, because Jawbone has not one, but two pieces of news to share this morning.

ENGADGET

So the first two pieces of the Ryan plan would make the income tax less progressive.

FORBES: How Would the House Budget Resolution Affect Tax Progressivity?