be up in arms
US /bi ʌp ɪn ɑːrmz/
UK /bi ʌp ɪn ɑːrmz/
1.
非常愤怒, 大发雷霆, 强烈抗议
to be very angry and ready to protest strongly about something
:
•
The residents were up in arms about the proposed new factory.
居民们对拟建的新工厂非常愤怒。
•
My parents will be up in arms if I don't come home by midnight.
如果我午夜前不回家，我父母会大发雷霆。