sew·age /ˈsuɪʤ/
  髒水,汙水(vt.)用汙水灌溉
  sew·age /ˈsuɪʤ/ 名詞
  Sew·age n.
  1. The contents of a sewer or drain; refuse liquids or matter carried off by sewers
  2. Sewerage, 2.
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  Sew·er·age n.
  1. The construction of a sewer or sewers.
  2. The system of sewers in a city, town, etc.; the general drainage of a city or town by means of sewers.
  3. The material collected in, and discharged by, sewers. [In this sense sewage is preferable and common.]
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  sewage
       n : waste matter carried away in sewers or drains [syn: sewerage]