Public securities are securities that the SEC will accept as suitable for the general public and private securities are securities that have not been vetted by the SEC for the general public.

公共券商是指那些经证交会审核通过,适于面向大众经营证券买卖的证券公司,而私募券商是指那些未经,证交会审查,面向大众的证券公司

耶鲁公开课 - 金融市场课程节选

Particularly, if we took advantage of the fact that this is a virus that's easily transmitted orally and could you make a vaccine that would be effective orally as well, that would be a tremendous advantage, especially in children who don't like to get shots.

尤其是,如果我们可以利用这种病毒,很容易经口传播这一事实,制造出一种,可以通过口服而起到同样效果的疫苗,那么这将是一个巨大的飞跃,特别是对于那些不喜欢打针的孩子

耶鲁公开课 - 生物医学工程探索课程节选