fast asleep片语KK [fæst əˋslip] /fæst əˈslip/发音片语1熟睡、睡得很沉、睡熟The baby was fast asleep in her stroller by the time we got home.我们回到家时,宝宝已经在推车里睡得很熟了。2睡著、入睡多与 fall 连用He fell fast asleep the moment his head touched the pillow.他头一碰到枕头就睡著了。用这个字练口说→