Exactly how the differences in bacteria might make vaginally born babies less prone to allergies and asthma isn't yet clear, but it does point to a difference that researchers can look at going forward.

VOA: standard.2010.06.30

But a few verses later it's clear that the poet isn't really drowning: this is a metaphor for his difficult situation.

但是随后的几首诗证明了，诗人并没有真正的溺水：,这里的水象征着困境。

耶鲁公开课 - 旧约导论课程节选

And maybe it was something else. But they withdrew for some reason And how and why they took up the worship of Yahweh or the cult of Yahweh isn't really clear but it seems to have been what marked them as distinct from other Canaanites.

也许是其他原因，但是他们因某一原因而收回,而他们怎样又为何开始了耶和华崇拜,或者说耶和华宗教并不清楚，但似乎,正是这点让他们区别于其他的迦南人。

耶鲁公开课 - 旧约导论课程节选

So, for example, in around 1900 in America or a little bit earlier, let's say 1880 in America, it really isn't clear that it was illegal to write agreements to say we'll restrict quantities.

比如1900年甚至更早的美国,假如是1880年的美国吧,在当时这种限制产量的合同是否违法,在司法上没有明确的界定

耶鲁公开课 - 博弈论课程节选

Well, not now My death can't be bad for me now I'm not dead But it's not 100% clear that the other alternative isn't acceptable "? Why not say,"My death is bad for me when I'm dead"?

至少不是现在,死亡现在对我来说没有坏处,我又没死,但另一种情况我们也不能百分百,确定是不可接受的,为什么不能说，“死亡在我死的时候对我来说是有坏处的？

耶鲁公开课 - 死亡课程节选