这是个人吃人的世界，为了生存大家都可以不择手段。

This is a dog-eat-dog world. People will stop at nothing in order to survive.

youdao

我那去了世界上很多个国家的舅舅讲了一个人吃人肉的可怕故事。

My uncle who had traveled to many counties in the world told a grisly story about people who ate human flesh.

youdao

There are people in the world who do eat cockroaches, and they would consider that thing on the left not food.

世界上确实有吃蟑螂的人,他们认为左边图中的不是食品

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选