一万只死去的海蜗牛只提炼出一克紫色染料。

10,000 dead sea snails got you just one gram of purple dye.

youdao

牧场主人也需决定哪些牛只要贩售。

Ranchers also decide which cows they want to sell.

youdao

So, you're starting out with about-- please don't write these down-- 24,000 cattle, 150,000 sheep, 6,000 hogs, and that is not enough to eat, and people become quite obsessed with what they're going to eat.

这样一来你至少需要,这个不用做笔记,两万四千头牛,十五万只羊,六千头猪,而这些只够勉强维持,人们开始为吃什么犯愁

耶鲁公开课 - 1871年后的法国课程节选