Drayna says therapies to replace enzymes that cause the diseases have been developed to treat half a dozen of these metabolic disorders.

VOA: standard.2010.02.11

In terms of diversification, there are half a dozen asset classes with weights that range between 4% and 28%.

投资多元化方面,投资于六中不同的资产类别,权重从4%至28%不等

耶鲁公开课 - 金融市场课程节选

And then there is this group of about half a dozen right down the diagonal middle.

然后有一个包含六个元素的元素组,在周期表的对角线的中部。

麻省理工公开课 - 固态化学导论课程节选

But regardless of how you measure it, for a full half-dozen years, in the midst of this bull market, colleges and universities were over-allocated to fixed income relative to where they had been in June of 1987.

但不管你怎么算,整整六年时间,处于牛市之中,大学的基金,由于1987年6月那次崩盘的影响,过度投资于固定收益债券

耶鲁公开课 - 金融市场课程节选