More important, it is not a primary fuel. You have to make it from something else.

更重要的是，它不是初级燃料。你需要从其他物质中获取它。

And when we're talking about that, a sugar burner is someone that consumes lots of carbohydrates and taps into glucose as their primary fuel source, which is incredibly inefficient.

当我们提到这个时，糖类消耗者指的是可以消耗许多碳水化合物，利用葡萄糖做为主要能量来源的人，这方式非常没有效率。