名詞 sewage:

1. waste matter carried away in sewers or drains
   同義詞：sewerage

1. Chemicals in the factory's sewage system have changed the ecology of the whole area.
   這座工廠排出的化學物質(zhì)改變了整個地區(qū)的生態(tài)。
2. A pipe for carrying off water or sewage.
   排水管排水或污水的管子
3. The grave problem of public hygiene is connected with the inefficient sewage system of the city.
   公共衛(wèi)生方面的嚴重問題與該城低效率的污水處理系統(tǒng)有關。