劍橋詞典 nightcap noun [C] (DRINK) a drink , sometimes an alcoholic drink , that someone has just before going to bed 睡前飲料（常指酒） nightcap noun [C] (HAT) a type of hat made from soft cloth and worn in bed , especially in the past （尤指舊時(shí)的）睡帽 返回 nightcap