drool       
 verb [ I ] uk/druːl/ us/druːl/
 流口水,垂涎
to allow saliva (= liquid in the mouth) to flow out of your mouth
  The dog lay drooling on the mat. 狗躺在垫子上流着口水。 
 I drooled all over my pillow. 我把枕头上弄得到处是口水。 
 Synonym: slobber 
 Phrasal verb   
drool over someone/something 贪婪地看,痴痴傻傻地看
to show extreme and sometimes silly pleasure while looking at someone or something
  Roz and I sat by the swimming pool, drooling over all the gorgeous young men. 罗兹和我坐在游泳池边痴痴地看着那些帅小伙儿。 
 I left Sara in the shop drooling over a green silk dress. 我扔下萨拉一个人在商店里着迷地看着一件绿色的丝裙。 
 drool       
noun [ U ] uk/druːl/ us/druːl/
 (因无法控制而流出的)口水
saliva that has come out of your mouth
 Synonym: slobber