现在我们已经讨论了古代社会的人们是如何驯养像牛和鸡这样的动物，并把它们作为食物和用于其他用途的。

Now that we've discussed how people in ancient societies tamed animals like cows and chickens for food and other uses.

youdao

我给你带来了些鸡蛋。我们养着一些鸡。

I've brought you some eggs. We keep chickens.

《柯林斯英汉双解大词典》

尽管吃昆虫的想法可能让我们大多数人感到恶心，但是很少有人会说我们经常吃的猪、鸡和一些海鲜就是美的典范。

Although the idea of eating insects is probably disgusting to most of us, few people would claim that pigs, chickens, and some kind of seafood we often eat are examples of great beauty.

youdao

System of linear equations. What are the equations here? Well, I could say, you know, the number of pigs plus the number of 20 chickens equals 20, right? Because we've got 20 heads. And then what else do I have?

如何解决这个问题呢？,用线性方程式的办法来解决，等式是什么呢？你应该知道,猪的数量加鸡的数量等于,对吧？因为我们有20个头？

麻省理工公开课 - 计算机科学及编程导论课程节选