The truth of the matter is if you look at the technology industry, there's always a few big guys, some medium size guys, lots of small guys, and the names are always changing because the industry is so darn dynamic, and there's so much new stuff being invented.

真相是，如果你回首科技行业，人总会分为三六九等，耳熟能详的名字总在变化,因为这个行业发展实在太快了，有如此多的新事物被发明出来。

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

I mean, you have a very dynamic business sector here. You know, it's always changing.

这儿有一个很动态的商业行业。它一直在变化。

机会之地，伦敦 - SpeakingMax英语口语达人