形容詞 upside-down:

1. being in such a position that top and bottom are reversed
   同義詞：inverted

副詞 upside-down:

1. in an inverted manner
   同義詞：upside down

1. Burglars had turned the house upside-down.
   竊賊 把房子翻得亂七八糟。
2. The classroom was turned upside-down.
   教室被弄得亂七八糟。
3. That picture is upside-down.
   那幅畫上下顛倒了。