流口水

例句：

1. 1. He was so hungry that he couldn't help but drool at the delicious food in front of him.
   他太饿了，忍不住流口水。
2. 2. The child drooled over the colorful toys on the shelf.
   孩子对架子上五颜六色的玩具流口水。
3. 3. After finishing his meal, he couldn't stop drooling and had to wipe his mouth with a napkin.
   吃完饭后，他不停地流口水，不得不用餐巾纸擦嘴。