So, something that makes your mouth water is something that is very good tasting, something that is delicious.

所以，让你流口水的东西是非常美味的东西。

Now, if the smell of baking cookies has ever made your mouth water and your belly grumble, then it might not surprise you to learn that these stomach secretions are ruled by neural mechanisms as well hormonal ones.

现在，如果烤饼干的味道让你流口水，肚子咕咕叫，那么你可能不会惊讶于发现这些胃分泌物是由神经机制和荷尔蒙机制控制的。