Alcohol acts as a diuretic, making you even more dehydrated.酒精有利尿剂的作用，会使脱水更严重。The drug is a diuretic.这药是利尿的。Caffeine is known to have a diuretic effect.众所周知，咖啡因有利尿功效。Many remedies effective in joint disease are primarily diuretic.许多对关节病有效的药品主要含有利尿成分。