就寝

get between the sheets

go to roost

hit the sack

sack

lie

retire

slept

to retire for the night

spin in

就寝[jiùqǐn]

他很少在午夜以前就寝。
He hardly ever (ie very seldom) goes to bed before midnight.

他几点就寝？他通常十点就寝。
What time does he go to bed? He usually goes to bed at ten.

那天晚上我内人就寝得很早。
My wife retired early that night.

我决定带本书早点就寝。
I decided to retire early with a book.

昨夜我很晚才就寝，错过了上半夜的睡眠。
I went to bed late last night and missed my beauty sleep.

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