beat off phrasal verbphr v a) beat somebody/something ↔ offPREVENT to succeed in defeating someone who is attacking, opposing, or competing with you 击败某人/某事 McConnell beat off a challenge for his Senate seat. 麦康奈尔挫败了一个挑战他参议员席位的人。
b) SY American EnglishAmE informal not polite if a man beats off, he masturbates 〔男子〕手淫
→ beat off at beat1(PHRASAL VERB)