Typically, food chains involve around four steps.

通常，食物链包括大约四个步骤。

All food chains start with plants.

所有的食物链均开始于植物。

People high up the food chain.

位高权重的人。

The entire food chain would collapse.

整个食物链会崩溃。

We were the bottom of the food chain.

我们处于食物链的底层。

They're now widely available at fast food chains.

现在，它们在快餐连锁店里随处可见。

But the really important thing about hippo dung is its place in the food chain.

但河马粪便真正重要的意义在于其在食物链中的地位。

It's at the top of a huge food chain.

它位于一条巨大食物链的顶端。

You're a little low on the food chain to...

你这食物链底层的没资格顶嘴。

Can't forget the bottom of the food chain, right?

不能忘记食物链的底层，对吧？

At the top of the food chain are the Raptors.

在食物链的顶端是迅猛龙。

To survive, some have shifted upward on the food chain.

为了生存，一些植物成为食物链上的逆袭者。

Once in farm animals, they become part of the food chain.

一旦农场动物使用抗菌素，那么抗菌素也会成为食物链的一部分。

From bees to dogs, we're moving up the food chain today.

从蜜蜂到狗，我们今天正在向食物链的上端移动。

If that happens, the entire food chain will be severely damaged.

如果这种情况发生，整个食物链将遭到严重破坏。

We say that they are at the top of the food chain!

我们说它是站在食物链顶端的！

[Bailey] You're interns. Grunts. Nobodies. Bottom of the surgical food chain.

你们是实习医生，新兵，什么都不是 外科的食物链的最底层。

I should be at the top of the food chain by now.

我应该在食物链的顶端。

Burger king is not the first fast food chain to offer meatless patties.

汉堡王不是第一家提供素食汉堡的快餐连锁店。

If the trend continues, entire food chains and webs may be at risk.

如果这种趋势继续下去，整个食物链和网络都可能面临风险。