资料来源 : pyDict

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

Subcontractor \Sub`con*tract"or\, n.
   One who takes a portion of a contract, as for work, from the
   principal contractor.

资料来源 : WordNet®

subcontractor
     n : someone who enters into a subcontract with the primary
         contractor