a. 颠倒的, 乱七八糟的
在线英汉词典

upside-down的短语、例句：

upside-down adj, adv 1 with the upper part underneath instead of on top 上下翻转过来（的）
That picture is upside-down. 那幅画上下颠倒了.
hold a book upside-down 倒拿著书. 2 (infml fig 口, 比喻) in or into total disorder or confusion 乱七八糟（的）; 毫无条理（的）
He has an upside-down way of doing things, eg he deals with priorities last. 他做事毫无条理.
Burglars had turned the house upside-down. 窃贼 把房子翻得乱七八糟.