Every country computes an estimate of how much is spent each year on consumption by the people who live in the country.

每个国家估算出,生活在该国国内居民,每年的消费额。

耶鲁公开课 - 金融市场课程节选

So Rituparna tries to prove to him his abilities and he says, see that tree there, I can estimate how many leaves there are on that tree by counting leaves on one branch.

所以睿都巴若那就试图证明自己的能力,他说,看那边的树,我只需数一根枝杈上的叶子,就能估算出树上叶子的总数

耶鲁公开课 - 金融市场课程节选