How did this happen, Peter?

这是怎么回事，彼得？

youdao

So, how did this happen to us?

那么，怎么会变成这样呢？

youdao

When and how did this happen?

这些发生在什么时候，又是怎样发生的？

youdao

Apparently,this did not happen and now the Obama administration has ordered investigations into how travelers are placed on these lists and how that information is then handled and distributed.

VOA: standard.2009.12.28

They were totally surprised and excited, and they were thinking how could this happen, where did we got this split doublet from.

他们对此非常惊奇和激动，然后他们考虑为什么会这样，怎么会得到这种劈裂的双峰。

麻省理工公开课 - 化学原理课程节选

So, this is an absolutely outstanding discovery, even though, if we think about it, what is the probability that this happened, how often did this happen?

0个alpha粒子，这绝对是一个，很了不起的发现，虽然我们仔细想想？

麻省理工公开课 - 化学原理课程节选

The image provokes inquiry and puzzlement how did this happen? could it happen to me?

ECONOMIST: Most-wanted photography

How did this happen and what does it mean for your investment portfolio?

FORBES: Is the Rising Bond Market Your Friend or Foe?

And so, they, you know, at least from the outside seem to have a bit of it all right now and I spent time asking people how did this happen.

NPR: What The U.S. Can Learn From Upbeat Brazil