资料来源 : pyDict

推销员,巡逻员,巡佐

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Roundsman \Rounds"man\, n.; pl. {Roundsmen}.
   A patrolman; also, a policeman who acts as an inspector over
   the rounds of the patrolmen.

资料来源 : WordNet®

roundsman
     n : a workman employed to make rounds (to deliver goods or make
         inspections or so on)