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sewer gas 【化學】陰溝氣;溝道氣。

sewer rat

One of those manholes like a bloody gaspipe and there was the poor devil stuck down in it half choked with sewer gas 有個陰溝口,就像那討厭的煤氣管一樣,卡住了一個可憐的家伙。陰溝里的臭氣已把他熏個半死。