我是免费的，我写我的家庭作业。

I was free, I was writing my homework.

youdao

当我空闲的时候，我写我的家庭作业。

While I was free, I was writing my homework.

youdao

星期三，我写我的家庭作业。

On Wednesday, I write my homework.

youdao

I won't write everything down because it's all written down on the homework assignment which is already on the web, but in fact firms are going to maximize profits, aim to maximize profits, firms are going to have constant marginal costs.

我不全写在这了因为它们都在,网上的家庭作业任务中写了,实际上公司是希望利润最大化,目的是利润最大化,公司有固定的边际成本

耶鲁公开课 - 博弈论课程节选