throw a monkey wrench in the works
成語所屬單字throw
throw a monkey wrench in the works — 慣用語
1. to cause a problem that stops a plan or process from working as expected
1.慣用語
釋義
從中作梗；打亂計畫
to cause a problem that stops a plan or process from working as expected
例句
The sudden storm threw a monkey wrench in the works for the outdoor wedding.