*a·sleep/ə`slip; əˈsliːp/ adj 1 sleeping 睡着的; 熟睡的: Be quiet. The baby is asleep. 安静点，婴儿在睡觉。 fast/sound asleep (=sleeping very deeply) 睡得很熟，沉睡: Look at Tom. He's fast asleep. 看汤姆，他睡得很熟。 2 fall asleep to begin to sleep 入睡: I always fall asleep watching TV. 我总是在看电视的时候睡着。