Transcript:

Their job is to keep passengers on the Sao Paulo underground safe.

But, once a month, instead of patrolling the platforms, nine security guards treat commuters to a concert.

They use the stations as venues and play an eclectic mix of samba, rock and opera.

The band is so successful that more members of staff want to take their place in the spotlight.

Vocabulary:

passengers n. 旅客，乘客（passenger的復數）

patrolling v. 巡邏（patrol的現在分詞），偵查

commuters n. 通勤者；每日往返上班者（commuter的復數）

an eclectic mix （很寬的）范圍

in the spotlight 處于公眾注意的中心，出風頭