sump /ˈsʌmp/
 汙水坑,水坑,池,機油箱


 Sump n.
 1. Metal. A round pit of stone, lined with clay, for receiving the metal on its first fusion.
 2. The cistern or reservoir made at the lowest point of a mine, from which is pumped the water which accumulates there.
 3. A pond of water for salt works.
 4. A puddle or dirty pool. [Prov. Eng.]
 Sump fuse, a fuse used in blasting under water.
 Sump men Mining, the men who sink the sump in a mine.

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 sump
      n 1: an oil reservoir in an internal combustion engine
      2: a well or other hole in which water has collected
      3: a covered cistern; waste water and sewage flow into it [syn:
          cesspool, cesspit, sink]