As food travels through our digestive tract, it reaches the fermentors who extract energy from these sugars by converting them into chemicals, like alcohol and hydrogen gas, which they spew out as waste products.

食物通过我们消化道时，发酵性细菌会通过将类进行转化，来吸取化学反应中能量，并将产生和氢气当做废料排出体外。