sump

• 名词，指用于收集液体的容器、坑或井，如发动机中的油底壳、坑中的水或密闭容器中的污水。

A noun referring to a reservoir, pit, or well that collects liquids, such as oil in an engine, water in a hole, or waste water in a covered cistern.

1. Oil reservoir in an engineB2formaltechnical

   A container or reservoir in an internal combustion engine where oil collects and is stored.

   油底壳

   • The mechanic drained the oil from the engine sump.
   • A cracked sump can cause a serious oil leak.
   • Regularly check the sump for metal debris.

2. Water collection holeB2formal

   A pit or hole, often in a basement or mine, where water naturally collects.

   集水坑

   • A sump pump is essential to keep the basement dry.
   • Water accumulated in the sump after the heavy rain.
   • They dug a sump to drain the flooded area.

   同义词cesspoolcisternpitreservoirsinkwell

3. Covered cistern for wasteC1formalbritish

   A covered pit or cistern designed to receive and hold waste water or sewage.

   污水池

   • The old house had a sump for collecting sewage.
   • Waste water flows directly into the sump.
   • They installed a new sump to manage the drainage.

   同义词cesspitcesspoolseptic tank