The reason is that unemployment is falling not just because of job creation but because the pool of people who want to work, the Labour force, is not growing.

失业率下降的原因不是因为创造了就业机会，而是因为愿意工作的人群，也就是劳动力队伍，并没有扩大。

youdao

Of course this force was exceedingly small, compared with that of the earth; and for that reason the vibrations of this pendulum were by far slower than those of a common one.

当然，跟地球的引力比较，大球的引力极其微小；所以，小球的摆动比通常所见的摆动要缓慢得多。

youdao

The reason is because the predominant force at this point is going to be the attraction that's being felt between the nuclei and the electrons in each of the atoms.

这是因为这时候最主要的力,是吸引力，它来自于,其中一个原子的电子与另外一个原子的原子核之间。

youdao

Far from having a sort of rational actor model of politics, he operates with an irrational actor model. He assumes that it is not reason but our passions that are the dominant force of human psychology, our desires, our aversions, our passions.

没有一个政治上理性的典范,他就着手塑造一个,不理性的典型，他假设,感情，而不是理性,是统领人类心理，欲望，厌恶和情绪的主要力量。

耶鲁公开课 - 政治哲学导论课程节选

That is part of the reason why America has the finest fighting force in the history of the world.

WHITEHOUSE: President Obama's Statement on General McChrystal and Afghanistan | The White House

Additionally, the major highly-trafficked companies are what drive most of the force of domain extensions, and none of them will have any compelling reason to start using these new TLDs except for the ones that applied for their own branded extensions.

FORBES: Get A Domain Name Without Bankrupting Your Startup

It is not the case that the reason the unemployment rate fell sharply was because of reductions in labor force participation.

WHITEHOUSE: Press Briefing