manhole

常見例句

Someone is working in the manhole.
有人在（鍋爐的）檢脩孔中工作。
I need to find a manhole tool...
我需要找個(gè)通道蓋子工具...
Here's the question: Why are manhole covers round?
這個(gè)問題是：爲(wèi)什麼下水道井蓋都是圓的?
Or the manhole cover outside your apartment?
還是你公寓外麪的下水井蓋?
Why are manhole cover round in shape?
點(diǎn)解下水道的蓋是圓形的?
Please move the manhole cover away.
請(qǐng)將人孔蓋移開。