on the beat的用法和樣例：
例句
- The Police Department says it opposes vigilante justice, but officers on the beat and neighborhood residents say they are enthusiastic about the company's tactics.
警察局說該局反對非執法人員私自執法，可是轄區警員及當地居民對該［警衛］公司的策略頗感興趣。 - By the end of the number they were all finally playing on the beat.
樂曲快結束時，他們終于都演奏合拍了。
