beat someone off
phrasal verb with beat verb uk/biːt/ us/biːt/ beat | beaten or beat
击退，打退，击败
to manage to defeat someone who is attacking you
She beat off her attacker by hitting him with her handbag. 她挥舞手提包把那个袭击她的人打退了。
figurative The company managed to beat off the competition and secure the contract. 公司设法打败了竞争者，获得了合同。