Slipcovers
n. 覆蓋物, 沙發套, 套子( slipcover的復數形式 )
??? 情景例句
It's a beautiful day, isn't it?
今天天氣真美，是吧？
Do I need a reservation for the dining car?
我需要預訂餐車嗎？
From these he can go on to appreciate more complex forms or combinations of several forms.
從這些形體出發，觀賞者可進一步觀察更為復雜的形體或若干形體的組合。