turn upside down
US /tɜːrn ˌʌpsaɪd ˈdaʊn/
UK /tɜːrn ˌʌpsaɪd ˈdaʊn/

1.
2.
搞得天翻地覆, 彻底打乱
to cause great disorder or confusion; to disrupt completely
:
•
The new policy turned the entire department upside down.
新政策把整个部门搞得天翻地覆。
•
The unexpected news turned her world upside down.
这个突如其来的消息把她的世界搞得天翻地覆。