passive sleep

例句：

1. 1. He was deeply engrossed in a book, completely unaware of the world around him.
   他全神贯注地读着书，完全不知道周围发生了什么。
2. 2. The patient needed to be kept in a passive sleep state for several hours.
   病人需要保持被动睡眠状态数小时。
3. 3.During the night, she fell into a deep passive sleep, unable to move or wake up.
   在夜晚，她陷入了深深的被动睡眠，无法动弹或醒来。