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building sewer /ˈbɪldɪŋ ˈsuːə/ n

中文：建筑污水管

中文 · 建筑污水管Español · cañería de desagüeFrançais · collecteur principal
Meaning：Drainpipe carrying wastewater from the waste stack to the sewage system or septic tank.
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Found in these illustrated scenes（2）

Septic system House plumbing system

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