But there are different accounts about how this happened.

但对于这次事件如何发生也有不同的言论。

These changes weren't happening in a vacuum.

这些改变并不是凭空出现的。

And the long-sought holy grail of ubiquitous voice recognition really will eventually happen.

人们长期以来向往无所不在的语音识别最终将成为现实。

Satellite data often tells you what happens after it's happened.

“卫星数据通常在事后才会发生了什么事。”

The building was being demolished when the collapse happened.

这座楼在拆除过程中倒塌。

That's thought to have happened after breakup of the Soviet Union.

据了解，自从苏联解体之后，这类交易就开始了。

" I would cry if that happened to me, " said another athlete.

“如果发生在我身上，我会哭的。”

Hermione listened to what had just happened with her mouth open yet again.

赫敏听了刚才发生的事，嘴又张开不拢了。

I was 8 years old and a thousand miles away when Stonewall happened.

当“石墙事件”发生时，我只是一个8岁的男孩，距那里也有1千英里。

Human flow has always happens in human history.

人口流动是人类历史上经常发生的事。

How old was she when this happened?

这件事发生的时候她多？

So it's clear that something has happened there.

因此，那里显然进行了军事行动。

The FBI is helping investigate how this happened.

美国联邦调查局正就此次袭击展开调查。

And often, they do not know how it happened!

通常，他们不道这是怎么发生的！

Nobody would have ever thought this could have happened.

没人想到会发生这样的事情。

This is the sixth time that this has happened.

这已经是第六次了。

About three years ago, something terrible happened to me.

约3年前，我身上发生了一些可怕的事。

I realized if anything happened with me and Jill...

我是想到如果我跟吉儿怎样。

Then about seven million years ago something major happened.

接着，约700万年前，某种具有决定意义的事情发生了。

And there was a time when it nearly happened.

而这险些就真的发生了。