xià shuǐ dào / dǔ sè / yǐ hòu / zhěng dòng lóu / de / lóu dào / lǐ / chòu qì chōng tiān下水道堵塞以后,整栋楼的楼道里臭气冲天。After the sewer became blocked, the hallways of the entire building stank to high heaven.