资料来源 : pyDict

入睡,睡著

资料来源 : WordNet®

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