upside down
adverb, adjective uk/ˌʌp.saɪd ˈdaʊn/ us/ˌʌp.saɪd ˈdaʊn/
B2 上下颠倒（地），翻转（地）
having the part that is usually at the top turned to be at the bottom
Turn the jar upside down and shake it. 把罐子倒过来，摇一摇。
The plane was flying upside down at high speed. 飞机正在倒飞，速度极快。
- More examples
- Turn the mould upside down and give it a gentle tap.
- She came off her bike, which landed upside down in a muddy ditch.
- Can you turn it round the other way, it's upside down.
- It was an abstract painting and I couldn't tell whether it was upside down or not.
- Place the tin upside down on a baking tray.
Idiom
turn (something) upside downidiom （把…）弄得乱七八糟；（使）变得凌乱不堪
to (cause something to) change completely and in a bad way
Another poor harvest could turn the country's economy upside down. 如果再歉收这个国家的经济就会陷入困顿之中。
Their lives were turned upside down when their son was arrested. 儿子被捕后，他们的生活变得一团糟。