So what makes this huge conveyer run?

那么是什么让这个巨大的输送机运转的呢？

Let me explain some of these in more detail. First, facial expression. Facial expression is a powerful conveyer of meaning.

我要更详细地解释这些。首先，面部表情。面部表情是义的种有力方。

Currently the world's oceans are criss crossed by a set of currents that act as a giant conveyer belt.

目前，世界各大洋洋流纵横交错，这些洋流就像个巨大的输送带。

At the Federal Pretzel Baking Company, The Nacchio family used a nifty conveyer belt machine that helped automate the process.

在联邦椒盐卷饼烘培公司，纳奇奥家族使用了台巧妙的输送带机器， 帮助实现了自动化生产。

So the conveyer belt takes chemicals, takes nutrients around the world, which feed plankton, which feed fish, which feed us.

比尔：所以这条输送带将化学物质和营养物质带到世界各地，这些物质滋养浮游生物， 浮游生物又喂养鱼类， 鱼类最终喂养我们。