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

So all you have behind here for spaces sake is just 8 cups, each with different weights.

在天平后面就是8个杯子，它们的重量互不相同。

哈佛公开课 - 计算机科学课程节选

You just say that arbitrarily this group, the reference group, let's say the group with the lowest weights, or the lowest cholesterol or anything, you say their risk is one, and then you look to see how everybody else's risk is compared to that.

可以随意地设定一个群组,作为参照组,我们可以假设是体重最低的一组,或者胆固醇水平最低的一组或者其他,将参照组的风险设为1,然后就可以比较参照组与其他组的风险

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选