One reason is that it takes a long time;

VOA: special.2010.04.13

So what I'm saying now is it took a long time for this to solidify. And one of the things we think made it solidify was the development of codices,a codex.

所以这花了很长一段时间,才得以统一，我们觉得,使它统一的是抄本的出现。

耶鲁公开课 - 新约课程节选

This was known for a long time, but it took Mr. Einstein to figure out why nature is behaving in that fashion.

这一点在很早以前就人所共知了,不过是爱因斯坦先生解释了,大自然为什么以这种模式运行

耶鲁公开课 - 基础物理课程节选

"It's a big deal. How big a deal you have to measure piece by piece but clearly it is the first major change in our health care system since nineteen sixty-five so that's a long time coming."

VOA: special.2010.03.27

Now that everything is did not live), it all seems a long time ago, though practically I still bear traces of the paint." Again, that parenthetical elides the death of the child.

这是莫娜的信：“现在一切都结束了,太可惜了，没能活下来！），一切似乎已经遥远，尽管自己至今,还在脸上留着残妆，“又一次的，这则附言草草提及孩子的死。

耶鲁公开课 - 1945年后的美国小说课程节选

"It will for a long time, at least while I am alive. And it is not just trucks and heavy machinery.

VOA: standard.2009.09.02

These DPPs go back a long time but there began to be complaints about them because people said, well why is it, because I'm not an accredited investor, I can't get into real estate like these other people do?

PP由来已久,但现在人们开始抱怨,他们说,我不是可信投资者,为什么仅凭此门槛,而不让我像别人一样投资商业地产呢

耶鲁公开课 - 金融市场课程节选

"It took us a long time to get here. It is going to take some time for us to work through this.

VOA: standard.2009.04.05

Even there, a horse is not really a rigid body, unless it's been dead for a long time.

马甚至都不是真正的刚体,除非是死了很长时间了

耶鲁公开课 - 基础物理课程节选

Henderson says that is another reason why it takes long time for him to build a guitar.

VOA: standard.2010.07.06

Al Masri said there is the belief among many Palestinians the peace process died a long time ago and is waiting for someone to bury it.

VOA: standard.2009.11.16

"It is simply a continuation of something I started a long time ago.

VOA: standard.2009.12.24

"The U.S.data should remind us that this recovery is not likely to be V-shaped It seems to me that we are going to see rising unemployment for a long time yet,"

VOA: standard.2009.08.05

"And it's a tough mission, but I think it is an attainable mission as long as we take the time to make sure that the mission is out there and laid out pretty well.

VOA: standard.2009.11.16

"People have been demonstrating these sets for a long time. But the reason it is coming out now is because of a new standard for Blu-ray players that can show movies in 3D."

VOA: standard.2010.03.11

We have got to do something,". Earlier Saturday, in his weekly internet address, Mr.Obama said the country has had a long and important debate on health reform, but it is time to act.

VOA: standard.2009.09.12

But she said it is time to go beyond disaster relief to long-term development to counter a so-called "youth tsunami" of an estimated one million Haitian young people who will enter the job market during the next five years.

VOA: standard.2009.04.14