manhole

• 地面上用于进入地下空间或管线的封闭孔口，通常带有可开启的盖板。

A covered opening in the ground, usually flush, that allows a person to enter an underground area or utility structure.

1. Access holeB1formaltechnical

   A covered opening in a road, pavement, or other surface, providing entry to an underground utility or structure such as a sewer or cable duct.

   井盖

   • The construction crew lifted the heavy metal cover off the manhole.
   • The plumber descended into the manhole to inspect the sewer pipes.
   • A manhole cover had been removed, creating a dangerous hazard on the street.
   • Telephone cables run through the underground channels accessible via manholes.