昏昏欲睡: be sleepy [drowsy]; a drowsy feeling crept [came] over (somebody); one's eyes draw [gather; pick] straws.; (the cool river breeze would blow so gently as) to make people sleepy
瞌睡: sleepy; drowsy; sleepiness; doze; somnolence 短语和例子打瞌睡 doze off; nod; fall into a doze; 那只猫在炉边打瞌睡。 the cat dozed off by the fire. 他打了一下午的瞌睡。 he dozed away the afternoon