资料来源 : pyDict

昏睡,昏倒;精疲力竭

资料来源 : WordNet®

flake out
     v : change from a waking to a sleeping state; "he always falls
         asleep during lectures" [syn: {fall asleep}, {dope off},
         {drift off}, {nod off}, {drop off}, {doze off}, {drowse
         off}] [ant: {wake up}]