另一种途径是两种病毒同时感染人类密切接触的另一种动物，例如猪。

Another way would be for both types of virus to infect other animals with which humans have close contact, such as pigs.

youdao

保持您每天胆固醇的摄入在300毫克以内。胆固醇只在动物类食品中发现，例如猪牛羊肉，禽肉，奶制品和鸡蛋蛋黄。

Keep your cholesterol intake below 300 milligrams per day. Cholesterol is found only in animal products, such as meats, poultry, dairy products, and egg yolks.

youdao

“例如，我无法控制最终自己是否会得猪流感。”他说。

"I cannot control whether or not I wind up getting the disease swine flu, for example," he says.

youdao

There are some things pigs naturally like, food for instance.

有些东西是猪天生就喜欢的，例如食物。

耶鲁公开课 - 心理学导论课程节选

So for instance, immediately you read "The pig is eager to eat" versus "The pig is easy to eat" and in a fraction of a second you know there's an important difference.

例如,你快速的阅读了"猪想吃东西",和"猪肉容易吃"这两句话,你在一瞬间就会懂得,这两句话之间是有很大区别的

耶鲁公开课 - 心理学导论课程节选