manhole

常见例句

• Someone is working in the manhole.
  有人在（锅炉的）检修孔中工作。
• I need to find a manhole tool...
  我需要找个通道盖子工具...
• Here's the question: Why are manhole covers round?
  这个问题是：为什么下水道井盖都是圆的?
• Or the manhole cover outside your apartment?
  还是你公寓外面的下水井盖?
• Why are manhole cover round in shape?
  点解下水道的盖是圆形的?
• Please move the manhole cover away.
  请将人孔盖移开。
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