The World Health Organization says it needs to see clear evidence of sustained community transmission of the swine flu virus from person-to-person in at least two regions of the world before it raises its alert to the phase six pandemic level.

VOA: standard.2009.05.14

In the depressed phase, our thinking is narrow; we don't think outside the box usually-- of course there's many exceptions, but as a whole.

在抑郁阶段，我们的思维收窄;,我们失去创造力-,当然有例外，但总体而言没有。

哈佛公开课 - 幸福课课程节选

And the triple point of water is 16K that temperature and pressure - there's a unique temperature and pressure where water exists in equilibrium between the liquid phase, the vapor phase, and the solid phase.

与水的三相点,我们定义它为273。,水的三相点,是一个特定的温度和压强,可以使水的液态，气态和固态三相共同达到平衡，三相点是液态。

麻省理工公开课 - 热力学与动力学课程节选

Phase Two, in the middle Pleistocene phase--700,000 years ago.

第二阶段,在更新世的中期,约七十万年前

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Phase One, the million and a half years ago, in the early--in the late--Miocene and early Pleistocene phases, there was shift where people were less likely to be just going out and gathering foods from every place they could find it.

第一阶段,一百五十万年前,在整个中新世以及更新世的早期,情况开始转变,人们不光靠,出门四处搜集食物

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选