sleep alone; 独寝
(so absorbed or occupied as to) forget about eating and sleeping 废寝忘食
The matter was then allowed to rest.; No more was heard of the matter thereafter. 其事遂寝。
go to bed 就寝
imperial burial place; mausoleum 陵寝
Qin Cheng 寝承
牛津高阶第八版
美国韦氏词典
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维基百科 (自由的百科全书)