对风能和其他天然的太阳能来说，能量流异常稀薄的：化石燃料的浓缩度比太阳能高十到五十倍。

In terms of wind and raw solar energy, the flow is exceptionally diluted: solar is ten to fifty times less concentrated than fossil fuel.

youdao

RIM, the maker of Blackberry, sells for fifty, sixty, seventy times earnings; when you buy that stock, earnings can go up.

加拿大RIM公司，黑莓手机的制造商，以收益的五十倍，六十倍或者七十倍出售；,当你买那只股的时候，收益可能会上升。

耶鲁公开课 - 金融市场课程节选