The puzzle has one last piece missing.

这个拼图还差最后一块。

youdao

There's reason to believe that we will get an answer to that piece of the puzzle one day.

我们有理由相信，总有一天，我们会找到这个谜题的答案。

youdao

It is like one piece of puzzle.

它就像一块拼图。

youdao

It is like one piece of jack puzzle.

就像字谜中的一个空格。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

So it is a very thin and quick move, one on a second, by which I mean that one electrode, one set of neurons is the a very important piece of the puzzle, but not all that you need.

所以说，这是一个非常细微而迅速的动作，一秒钟一次，我是说一个电极，一组电极对于去猜整个谜很重要，但是你需要的远不止这些。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

Another one might be "wait one second" which is another building block or puzzle piece and scratch.

另一条语句可能是“wait，one，second“,这条语句组成块或者片。

哈佛公开课 - 计算机科学课程节选

The answer is that when it comes to retail and wholesale borrowing rates, the lesson of the past few years is that the Bank of England is only one piece of the puzzle, and a smaller one that it was a few years ago.

BBC: Quantitative easing for whom?

"Facebook is one piece of the puzzle, but it's not a silver bullet, " he said.

WSJ: Bad Credit? Start Tweeting

But considering who is flying is just one piece of the puzzle when it comes to the complex world of airfare pricing.

BBC: How airline pricing works