Jane says she does not use any preservative chemicals in her products, so they only last about two or three weeks.

VOA: special.2010.02.17

We talked about antibodies, we talked about them two weeks ago, we talked about them in section last week, uses of them.

我们讨论过抗体,我们在两周前讨论了抗体,上周的组会中我们讲到抗体的应用

耶鲁公开课 - 生物医学工程探索课程节选

We've spent the last week and a half or so, maybe a bit more, two weeks, talking about arguments for the existence of the soul.

我们已经花了一周半,也许还多点,两周吧,来讨论证明灵魂存在的论证

耶鲁公开课 - 死亡课程节选

In colder climates, parsley can go into the ground two to three weeks before the last winter freeze is likely to happen.

VOA: special.2009.06.02

We're going to go now to the last movement of his Pastoral Symphony, and I keep hitting on the Pastoral Symphony 'cause in two weeks- or maybe three weeks--we're going to go hear, I guess,the Saybrook Orchestra play the Pastoral Symphony.

我们来听田园交响曲的最后一个乐章，我总是说田园交响曲是因为这-,两周或三周我们将会听到，我想可能是赛布鲁克交响乐团演奏田园交响曲。

耶鲁公开课 - 聆听音乐课程节选

The last day for nominations was February first, less than two weeks after the president took office.

VOA: special.2009.10.10