Now Microsoft is sort of a funny place, we've got these big businesses but in the software business big businesses need to be constantly recreated.

现今的微软是非常有意思的地方，我们运行着庞大的生意，但是在软件交易上,大宗交易更像是消遣。

斯坦福公开课 - 微软CEO-Steve.Ballmer谈科技的未来课程节选

There was a big doc-forum took place in Seoul earlier this year.

今年的早些时候，首尔举行了一场大型的纪录片论坛。

拍摄纪录片 - SpeakingMax英语口语达人

The trouble is, you just don't know when that explosion took place, and since there are several periods in this general area that we're talking about now, in which something big happened, some great change takes place, it turns out different people want to have their explosion at different times.

问题是,你不了解火山爆发的,确切时间以及这种爆发,在这个区域又延续了很多个时期,这些时期发生了许多重大事件和重大变化,结果就是不同人对,火山爆发的时间推测各不相同

耶鲁公开课 - 古希腊历史简介课程节选