今天我坐摩的的时候翻车了,后背摔在一个没盖盖子的下水道上。
Today, I was taking a motorcycle taxi, when we lost balance and toppled over. I fell on my back on an open sewer.
下水道出入孔:一种常带有盖的孔道,人可以由此孔进出排道、锅炉、下水管或类似设施。
A hole, usually with a cover, through which a person may enter a sewer, boiler, drain, or similar structure.
点解下水道的盖是圆形的?
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