资料来源 : pyDict

过客

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

Passer-by \Pass`er-by"\, n.
   One who goes by; a passer.

资料来源 : WordNet®

passer-by
     n : a person who passes by casually or by chance [syn: {passerby},
          {passer}]
     [also: {passers-by} (pl)]