/ˌʌpˈsteəz ||; ˈʌpˈstɛrz/adv
to or on a higher floor of a building 往楼上;在楼上:
to go upstairs走上楼She's sleeping upstairs.她在楼上睡觉。 [OPP] downstairs 反义词为downstairs
upstairs /ˈʌpsteəz ||; ˈʌpˈstɛrz/ adjan upstairs window 楼上的窗户
the upstairsnoun [sing] (informal 非正式)
We're going to paint the upstairs.我们正要把楼层油漆。