睡眠
word B2- sleep
- to sleep
- (computing) to enter sleep mode
Its characters
Words with it
From the library
人的一生中，大约有三分之一的时间是在睡眠中度过的。
然而，越来越多的研究表明，睡眠对身心健康至关重要。
科学家发现，睡眠并不是一种单一的状态，而是由浅睡、深睡和快速眼动睡眠组成的周期。
Learn 睡眠 in real texts
With a free account, hover any word in the library for its meaning, hear it read aloud, save words for review timed to your memory, and see how much of each book you already know.