drainage

• 名词，指排出某区域内的水、液体废物或其他液体的系统或过程，例如通过管道或沟渠进行排水。

A noun referring to the system or process by which water, waste liquids, or other fluids are removed from an area, such as through pipes or channels.

不可数

1. Removal of waterB2formal

   The process or system by which water or liquid waste is removed from an area.

   排水

   • The drainage system in the city prevents flooding during heavy rain.
   • Poor drainage can cause water to accumulate in the garden.
   • They installed new drainage pipes to direct water away from the foundation.

   同义词drainingoutflowsewerage

2. Medical drainageB2formalmedical

   The removal of fluids from a body cavity or wound for medical reasons.

   引流

   • The doctor inserted a tube for drainage of the abscess.
   • Post-surgical drainage is important to prevent infection.
   • The patient's wound required continuous drainage for several days.

   同义词aspirationdraindrainingevacuationsuction