flummox
🇺🇸
/ˈflʌməks/
🇬🇧
/ˈflʌməks/
to make someone unable to think clearly or respond effectively because they are surprised or confused
The sudden change of plans completely flummoxed him, and he didn't know how to react.
計劃的突然改變完全讓他不知所措,他不知道如何反應。