They made out of water they made out of completely different substance, they made out of sulfurous gases.

它们由水及完全不同的物质组成, 它们也是由硫磺气体组成。

If you snack on foods that have a lot of sulfur-containing compounds, like cabbage, broccoli, or eggs, then your gut bacteria will produce more sulfurous gases.

如果你爱吃含大量硫元素的食物，比如卷心菜、花椰菜或鸡蛋，那么你肠内细菌就会产生更多含硫气体。