We're operating in a dog-eat-dog world.

我们是在一个残酷竞争的世界里立足。

It's a dog-eat-dog world.

这真是一个竞争激烈的世界。

Wall Street is a dog-eat-dog place.

华尔街是个残酷的地方。

Wall Street is a dog-eat-dog place.

华尔街是个人吃人的地方。

Advertising is a dog-eat-dog field.

广告是个争夺异常激烈的行业。