n.想睡，困倦；昏昏欲睡
Dull with sleepiness; sluggish. 因困倦而迟钝; 懒怠的
Produced or characterized by sleepiness. 由困倦引起的，或以困倦为特征的
Too much food induces sleepiness. 吃得太饱会引起睡意。
