形容词

1. After her children went to bed, the mother turned the upside-down house back to normal.
孩子们睡觉后，母亲把混乱的屋子重新整理好。

adj

1. being in such a position that top and bottom are reversed

e.g. a quotation mark is sometimes called an inverted comma
an upside-down cake

Synonym: inverted