Definition
To be in a state of deep sleep or unconsciousness, especially sleeping very soundly.
沉睡
By the end of the match, the boxer was out for the count.
比賽結束時，拳擊手已經昏迷不醒。
I was so tired last night that I was out for the count as soon as my head hit the pillow.
昨晚我太累了，頭一碰到枕頭就睡得不省人事。
After a full day of hiking, they were all out for the count.
經過一整天的徒步旅行，他們全都睡得不省人事。