He seemed to be in a deep sleep.
他看上去要深睡过去了。
It is very difficult to awaken a person in deep sleep, and children in this state may be nearly impossible to wake up.
处在深睡眠状态的人极难被唤醒，如果是儿童进入这种状态，唤醒他们几乎是不可能的任务。
Take a few deep breaths, relax, and your body will assume that it's time to sleep and you'll be drooling on your pillow in no time.
做几下深呼吸，然后全身放松，你的身体会认为睡觉的时候到了，于你就能迅速坠入梦乡。
应用推荐