"the box was lying on the floor upside down"
She felt that her world was being turned upside down.
Felt-tip pens work by capillary action, so I could write upside-down.
We turned the house upside down looking for my birth certificate.
牛津高阶第八版
美国韦氏词典
Dictionary.com
Free Dictionary
维基百科 (自由的百科全书)