Word data

HSK Not in HSK

FREQUENCY Unknown

快速動眼期 kuài sù dòng yǎn qī

REM sleep

HSK	Not in HSK
Frequency	Unknown

Character	Meaning
快 kuài HSK 2	quick; rapid; soon
速 sù HSK 4	fast; quick; rapid
動 dòng	(of sth) to move; to set in movement; to stir (emotions)
眼 yǎn HSK 2	eye; crux (of a matter); small hole
期 qī HSK 1	term; a period of time; period