例句
柯林斯高阶英汉双解学习词典释义
  • N-COUNT
    (位于街面,盖有金属盖,供工人检修、疏浚下水道时出入的)出入孔,检修孔,人孔
    A manhole is a large hole in a road or path, covered by a metal plate that can be removed. Workers climb down through manholes when they want to examine or clean the drains.