The chief reason why…is that….

为什么……的主要原因是……

This was the chief reason that progressives supported and railroad spokesmen opposed the proposal.

这就是进步派支持而铁路公司代言人反对这一建议的主要原因。

I held out until 2004, and the chief reason I got it was because I had a job where hours mattered.

2004年我有了手机i，其主要原因是因为我的那份时间重于一切的工作。

Perhaps the chief reason why he enjoyed his first year in London so much was because Eugenie was here.

或许他喜欢自己在伦敦的第一年主要原因在于尤金妮娅在这里。

The chief reason for the population growth isn’t so much a rise in birth rates as a fall in death rates as a result of improvements in medical care.

人口增长的主要原因与其说是由于出生率上升的缘故，倒不如说是由于医疗条件的改善而导致死亡率下降的缘故。

Magee: But, if I may say so, I don't think the chief reason why most people take a dualist view of reality has to do with dreams, or with the other things you mentioned.

但我认为很多人都采取二元论的实在观的主要原因，是与梦和你提到的其他事情无关的。

The chief reason he got the job was his experience with tax issues.

他找到工作的主要前提是他有税务事宜经验。

Financial stress is well established as a chief reason for divorce.

经济压力被充分证实为导致离婚的一个首要因素。

Because it's old; that's the chief reason. We haven't any use for old things here.

因为莎士比亚古老，那是主要的理由。古老的东西在我们这儿是完全没有用的。

The chief reason why efficiency has become the goal of judicial reformation is the nature of market economy.

效率之所以成为司法改革的目标，最主要的理由是由市场经济的性质决定的。