There's prime rib, mahi-mahi and a very special lobster ravioli.

有烤肋排，鬼头刀鱼 跟特制龙虾饺子。

Here's a fish called the knife fish that produces electricity.

有一种叫做刀鱼的鱼能产生电力。

This creates an electric field around the knife fish's body.

这在刀鱼身体附近产生了电场。

And some fish, like the knife fish, generate an electric field around its body when it's swimming around.

有一些鱼，例如刀鱼，在游泳时会在其周围产生电场。

And then I went said second of all, and I talked about the electric currents of the knife fish.

我先说了第二点，我谈到了刀鱼的电流。

The fish then realizes that there is a rock nearby and that it has to avoid crashing into it.

刀鱼就意识到附近有一块岩石，而它要避免撞上去。

The knife fish is a good example.

刀鱼就是一个很好的例子。

They're a type of knife fish and their body functions as a battery.

它们是一种刀鱼，它们的身体起到电池的作用。

The most powerful strongly electric fish is the electric knife fish, more commonly known as the electric eel.

最厉害的强电鱼是电刀鱼，俗称电鳗。

The knife fish produces an electrical signal, --- and the receptors in its skin let it know when the signal it distorted by a tree root, or some other obstacle, so it can go around it.

刀鱼会产生电信号，当信号被树根或其他障碍物扭曲时，它皮肤上的感受器会通知它，这样它就可以绕过它。