round on
US /raʊnd ɑːn/
UK /raʊnd ɑːn/

1.
انقض على, هاجم
to turn on someone suddenly and attack them, either verbally or physically
:
•
She suddenly rounded on him, accusing him of lying.
فجأة انقضت عليه، متهمة إياه بالكذب.
•
The crowd rounded on the speaker after his controversial remarks.
انقض الحشد على المتحدث بعد تصريحاته المثيرة للجدل.