The study involved forty-four traders and their profits and losses over a twenty-month period ending in two thousand seven.

VOA: special.2009.02.25

Nothing happens to the two-period bond because it just continues to mature.

两年期债券的头寸则没什么变化,因为它仍在存续期内

耶鲁公开课 - 金融市场课程节选

I bought a number of two-period bonds such that the value of my purchase exactly equals the proceeds that I get from shorting the one period bond, so I've made a zero wealth transaction.

我买入了一定数量的两年期债券,其成本刚好等于我卖空,一单位一年期债券获得的资金,我做的是零成本交易

耶鲁公开课 - 金融市场课程节选

The study examined employment records for eight cities in Minnesota for a three-year period through two thousand six.

VOA: special.2009.05.27

In fact, there's a rabbinic image, there's a rabbinic tradition that talks about this period of time, and has God and Moses talking, and God says: Listen, between the two of us, whenever I blow hot, you blow cold, or when I pour hot water, you pour cold, and when you pour hot, I'll pour cold, and together we'll muddle through, and get through here.

事实上，这里有一个与犹太律法相关的意象，犹太律法传统,描述了这段时间中，上帝和摩西又一次谈话，上帝说：“听着，在我们两个人中间，当我吹热风，你要吹冷风，当我泼热水，你要泼冷水，当你泼热水的时候，我们泼凉水,我们将一起应付各种情形。

耶鲁公开课 - 旧约导论课程节选

The race to save two of America's big three carmakers is entering a new and intense period.

VOA: special.2009.05.01

r1 is the yield on the one-period bond and r2 is the yield on the two-period bond.

1是一年期债券的收益率,r2则是两年期债券的收益率

耶鲁公开课 - 金融市场课程节选

The hot line had an important purpose: to prevent accidental war between the two competitors during the period known as the Cold War.

VOA: special.2009.12.06

Many magazines failed. The two big successes of the period were Life Magazine and the Reader's Digest.

VOA: special.2011.04.14

The researchers studied the diets of thirty-one thousand children ages two to eighteen over a thirty-year period.

VOA: special.2010.03.17

They had six children over a seven-year period, four girls and two boys.

VOA: special.2010.04.18

Scientists say it formed when high sea levels flooded the middle of North America, splitting the continent in two for millions of years during the late Cretaceous period.

VOA: special.2010.10.05