The liver also generates sugar from proteins and fats, a process called gluconeogenesis.

肝脏也会将脂肪、蛋白质转化为糖 此为葡萄糖异生作用。

So, there's constantly current flowing into the Earth from thunderstorms and flowing out where there's not thunderstorms and in that process an electric field is generated in the atmosphere.

因此，不断有电流从雷暴流入地球，然后在没有雷暴的地方流出，在这个过程中，大气中产生了电场。