Conference organizer, Dr.Greg Pappas of the American non-governmental organization,or NGO, called Interaction says that while it is too early to tell whether the current outbreak will turn into a global pandemic, poorer countries in particular need to be prepared for the day when one does hit.

VOA: standard.2009.04.28

Some, like the smallpox vaccine on one exposure generates a very high response that lasts for many years so you don't need a boost.

有一些疫苗,比如接触一次天花疫苗后,人体就能产生高水平的免疫应答,并持续很多年,所以无需再次接种

耶鲁公开课 - 生物医学工程探索课程节选

One group of arguments for the existence of a soul says, "We need to posit a soul in order to explain something, whether it's something everyday or something supernatural."

主张灵魂存在的一方声称,我们必须假设灵魂存在,才能解释一些,司空见惯或是超自然的现象

耶鲁公开课 - 死亡课程节选

It could be the letter understood either graphically or audibly, and the variety of ways in which one can choose a basic unit in the study of linguistics means that you need a special word for that unit, which is characteristically "the tagmeme."

它既可以以图像的方式理解，也可以以声音的方式，因为每个人研究时选取的,基本的语言学单位不一样,所以需要一个特殊的名词来指代这个单位，这就是，法位“

耶鲁公开课 - 文学理论导论课程节选

And what the physicalist would need to do for each one of those-- For each one of those you can imagine a dualist who says, "We need to believe in a soul so as to explain seances.

对于这些东西,物理主义者该怎么做,对于这些,你可以想到二元论者会说,我们需要相信有灵魂才能解释通灵

耶鲁公开课 - 死亡课程节选