to polish sb off or to polish off sb
+ opponent, team打败；击败
He polished off his opponents 21-2, 21-8 and 21-8.他以21比2、21比8和21比8直落三局击败了对手。
South Africa resume this morning on 278 for seven and England could well polish them off first thing.南非队今天上午以278分七人出局继续比赛, 英格兰队可能一上来就能把他们很快干掉。